Showing posts with label Malware. Show all posts
Showing posts with label Malware. Show all posts

Wednesday, 6 September 2017

Client E-mail Warning for the Current Malware Campaigns

This went out this morning. The first place in any "security strategy" should be to train the human.

Folks,

I hope you had a great summer!

With anti-SPAM services getting better and better the malicious folks out there are getting a lot more subtle in their efforts plus we’re seeing an uptick of baddies in the Inbox.

Things to note in the message below:

  1. The FROM domain @fmelaw.com does not match the domain in the link
  2. After hovering the mouse over the Here link the URL listed contains a bunch of gibberish
  3. Watch for language, spelling, and grammar errors as there tends to be a lot of them
  4. Is the Subject and/or Sender legit? Call them first!
  5. Do NOT open any Word documents and especially do NOT click Enable Macros if prompted!
  6. Be cautious with any PDF attachments. If in doubt call the sender or forward to here with a question.

clip_image001

NOTE: We are seeing _a lot_ of compromised e-mail addresses and mailboxes as a result of users opening something or clicking on something they should not have.

One attack vector is via a Macro enabled Word document harvests both E-mail and Addresses to send out _replies_ to a legitimate e-mail thread/conversation. If the Word document gets clicked on and a prompt comes for enabling Macros the Word document is BAD. CLOSE Word and SHIFT+DELETE the e-mail!

If in doubt, don’t open or click on it! Do _not_ hesitate to call or forward the questionable content!

Thank you and have a wonderful day! :)

Philip Elder
Microsoft High Availability MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book
Our Cloud Service
Twitter: @MPECSInc

Friday, 4 August 2017

Edge Browser: Reset After Malware How To

Every time a client of ours opened Edge they would receive a big red screen with "Edge has been compromised".

With the Edge option to open previous tabs/pages there is no real way to get out of the loop. We cleaned out the Edge temporary files folder and the problem still happened.

So, to fix it we needed to nuke & pave.

We do that by running the following two steps on the problematic machine:

1: Delete:
C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe

2: Elevated PowerShell all on one line:
Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" -Verbose}

3: Start Edge

With the above process complete the user should get the "Welcome to Edge" message and tabs.

NOTE: This process essentially removes and re-installs Edge. _ALL_ settings, saved passwords, and such are removed!

Philip Elder
Microsoft High Availability MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book
Our Cloud Service
Twitter: @MPECSInc

Monday, 15 May 2017

WannaCry Mitigation plus Windows XP and Server 2003 Patch

By now most of the world has heard about the WannaCry malware put together from purported NSA exploit "tools".

The simplest thing to do is to disable or remove SMBv1 on our networks: How to enable and disable SMBv1, SMBv2, and SMBv3 in Windows and Windows Server (Microsoft Support).

Dealing with SMBv1

On Windows 7:

First, we need the following put into a text file:

sc.exe config lanmanworkstation depend= bowser/mrxsmb20/nsi
sc.exe config mrxsmb10 start= disabled
pause
shutdown -r -t 0 -f

image

In Notepad click File then Save As and name exactly as follows:

"Windows7 SMBv1 DISABLE.BAT"

image

NOTE: The quotes " are necessary

Right click on the resulting BATCH file and Run As Administrator:

image

An administrator's username and password will be required for this step. A local admin or domain account would work.

A status window will show:

image

NOTE: Windows 7 should show SUCCESS for both steps

As the message says, press any key to continue.

NOTE: The script automatically reboots the machine so make sure users save and close before running.

On Windows 10:

  1. Click Start and type PowerShell
  2. Right click on the result and Run as Administrator
  3. Remove-WindowsOptionalFeature –Online –FeatureName SMB1Protocol
    • You should see:
    •      image

That fully removes the problematic component in Windows.

Windows Server

Open an elevated PowerShell window:

Remove-WindowsFeature –Name FS-SMB1

image

Backup & Restore

For users that almost exclusively work from their computer over server or cloud based resources with no local backup it's important that they back up their machines daily! They should have at least three 2.5" USB3 fast disk drives in rotation.

We use ShadowProtect Desktop by StorageCraft to back up our client's endpoints.

A critical component in the backup regime is an air-gap. Just as it is for the entire organization's server infrastructure.

Windows XP and Server 2003

Get the Security Updates ASAP and install them!

The files may be able to be set up to be delivered via your favourite patching mechanism. Please check that out to get these patches out to as many systems as is possible.

Windows Firewall

One mitigation step would be to set up a Group Policy object that denies File & Print (445) Inbound from any system but necessary such as servers and/or domain controllers.

Malware Mitigation

As always, the best form of mitigation is a well trained user. Patch and train the human is the best methodology going.

A a small plug, our xD mail sanitation and continuity service flags and renders inert links that say one thing but point to another location. This has put link shortening services like Bit.Ly at a disadvantage but we're willing to pay that price to keep our users sage. Just ask us how!

Philip Elder
Microsoft High Availability MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book
Our Cloud Service

Friday, 26 February 2016

Security: A Sample E-mail How-To Guide For End Users

With the plethora of e-mail born Office documents with active macros in them to pull down malware/ransomware we sent out the following e-mail to all of our clients for distribution internally.

***

Good day everyone,

It’s gotten to the point now where we are considering a universal restriction on incoming Office Documents. By that we mean plucking them right out of the e-mail via ExchangeDefender by default.

We have somehow travelled back to the 1990s where the bad guys are setting up Office documents with a Macro, an automatic script that runs when the document gets opened, that goes on to pull down their nefarious malware or ransomware.

Here are some steps to help protect us:

  1. Microsoft Office has a Save As PDF feature built-in. Please have all outside folks send a PDF instead of an Office document
    1. This is especially critical for Resumes. All job postings _must_ request PDF and note that Office documents would be deleted on the spot!
    2. If collaboration is required for Office documents use ShareFile
    3. Preferred over Dropbox since security is questionable with the Dropbox service
  2. Most Office documents that have Macros built-in have an “m” in the extension
    1. clip_image001
    2. Save the Office document to Downloads and verify!
    3. If extensions are not shown then right click the file and left click on Properties
    4. clip_image002
  3. Users _should_ be prompted:
    1. clip_image003
  4. Obviously, the answer should be to NOT click that button
  5. If they do, there is one last cause for pause
    1. clip_image004
  6. This is what happens if I try and click on something that is Macro driven _before_ clicking Enable Content
    1. clip_image005

Along with the need to be mindful of any Microsoft Office attachments in our e-mail we should also remember the following:

  1. Never click on a link in an e-mail without at the least verifying its destination:
    1. clip_image006
    2. Hover the mouse cursor over the link to verify
    3. As a rule: Never, ever, click on a link in an e-mail. Go to the web site after opening a new browser window (IE, Firefox, Chrome, Safari)
  2. It may _look_ like it came from someone you know but never trust that. Call and ask!
    1. There are a few exceptions to this rule thus make sure to hover your mouse over the link before clicking!
    2. Advanced users can check the headers
      1. image
      2. image
      3. Follow the flow from origin server to destination server
  3. Don’t save important site’s information in the browser
    1. Banking IDs and passwords
    2. CRA and critical site’s IDs and passwords
    3. Do not disable the secondary question for any computer
      1. Banking sites use this feature to help protect the account as one example
      2. Answer the question, it only takes a couple seconds and could save your savings!
  4. Never call the 800 number that comes up in a Search for Support!
    1. Go to the manufacturer’s web site and click on the Support link to find the correct phone number
  5. Never believe a pop-up message that says your computer is infected with something!
    1. And never, EVER, call the 800 number on that pop-up!
    2. Don’t click anywhere, close and save your work if needed then, reboot!
    3. Do NOT click anywhere in the pop-up window. Looks are deceiving as all areas of that pop-up = YES/ACCEPT/CONTINUE
  6. Never volunteer a credit card number or banking information to anyone
    1. Social Security/Social Insurance Numbers too!
    2. Folks can garner a lot about us online. Never volunteer any information when asked via any incoming call/e-mail/forum
    3. Always call them back!
  7. Caller says they are from the bank, CRA, or other seemingly critical business?
    1. Ask for their badge number, an 800 number to call, and an extension
    2. Open a browser and verify the 800 number belongs to the bank/CRA/CritBiz.
    3. Then call them back after hanging up if the number proves true!

While the above list is far from complete, by following these guidelines we can greatly reduce the chances of a malware or ransomware infection.

And, as always, e-mail or call if you are not sure about something!

***

Please feel free to use this as a template for training users!

Have a great weekend everyone. It’s +10C here and much like an awesome Spring day!

Philip Elder
Microsoft High Availability MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book

Thursday, 25 February 2016

Some Thoughts On Security Layering for SMB and SME

We are by no means masters of security for our SMB and SME clients. Since we have to wear many hats we sometimes need to bring folks in that can help us to fine tune the security layers in our client’s networks.

Here are some of the Pearls (blog category) that we have garnered over the years. This was posted originally to the SBS2K Yahoo List and has been modified for this post.

***

Layering is important.

Some examples follow.

Windows Firewall

  • Windows Firewall is managed by Group Policy
    • All Profiles: ON
    • All Profiles: Block ON
    • All Profiles: Logging ON
    • All Profiles: Pop-Up for new services ON
    • DOMAIN Profile: Custom Inbound rule sets for required services beyond the default.
    • Private and Public Profile: INBOUND BLOCK ALL
      • If data sharing is required then a small and inexpensive NAS should be set up

Mail Sanitation and Continuity

ExchangeDefender (xD), for us, is one of the principle ways we keep bad stuff outside of the network.
Why allow it to hit the edge in the first place? Plus, it eliminates SMTP Auth attacks as the WAN IP is not published via MX among other attacks. Interested? Ping us and we’ll set you up.

Edge (Router)

A solid edge device, we use SonicWALL, with a BLOCK ALWAYS rule for ALL outbound traffic is a key element. Rule sets for outbound traffic are very specific and tailored to a client’s needs.

  • Examples:
    • DNS queries to non on-premises DNS servers are blocked. All DNS queries must go through the on-premises DCs.
    • On-Premises edge only or DCs can have the DNS Forwarders set to DNS filtering services.
    • SMTP traffic outbound only from the on-premises Exchange server. Or, local copiers/MFPs to ISP SMTP server IP only
    • Inbound is HTTPS via ANY
    • SMTP via xD subnets only.
    • RDP on ANY port should NEVER be published to the Internet.
      • RD Gateway with Network Level Authentication is a must today.
      • Any exceptions require a static IP on the source end to allow inbound rule filtering based on IP.
      • Look up TSGrinder if not sure why…

Ransomware Protection

Third Tier’s Ransomware Protection Kit is another layer of protection. Everything is contained in this kit to deploy a very tight layer of protection against today’s Ransomware.

Microsoft Office Group Policy Security

Office Group Policy structures with Macros disabled by default, non-local sources blocked, and other security settings for Office files provide another layer.

  • This one gives users grief because they need a few extra steps to get to the documents.
  • We’ve started requesting that clients have a PDF only policy on their Jobs listing pages and such.

A User Focused Effort

IMNSHO, A/V at the endpoint has become virtually useless today. Things seem to be a lot more targeted on the virus side with ransomware taking over as the big cash cow. We still install A/V on all endpoints. :)

What we are saying, is that the principle portion of the risk of infection comes via the user.

A well trained user means the risk of infection drops substantially.

A user’s browsing habits and link clicking are the two key areas of training we focus on. Sites visited are another.

We suggest to clients that a company policy of allowing browsing for business related tasks only while connected to the company’s network resources. This policy can further reduce exposure.

Part of our training regimen is a somewhat regular e-mail from an outside account to users to test them and challenge them is a good idea every once in a while.

  • Link hovering to discover the true destination
  • Attached Word doc with *BUZZ WRONG* when opened
  • Just because it SAYS it’s “FROM” someone we know doesn’t mean it is!

Backup Protection

Oh, and protect the backup loop (blog post on closing the backup loop)!

BTW, we just heard about another NAS based backup that was ransomware encrypted as a result of the destination folder being open to users.

Anyone, and I mean ANYONE, that has a backup structure, whether NAS or HDD based, that allows users and admins access outside of the backup software username and password setup needs to close that loop NOW. Not on the To Do List, not for tomorrow, not next week, but NOW.

Just in case: Close that Backup Loop Now.

Hyper-V Standalone Setups

One more point of order: In standalone Hyper-V settings leave the host in workgroup mode.

No one on the network should have the admin username and password to that host. No. One. It should be documented somewhere but not public knowledge.

Please feel free to add the layers you use to this post via comments.

Thanks for reading!

Philip Elder
Microsoft High Availability MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book

Wednesday, 13 November 2013

Our Client CryptoLocker Warning E-Mail

This is a copy of an e-mail we are sending out on a somewhat frequent basis to our clients to keep being Internet Street Smart at the top of their minds:

Hello all,

I may have mentioned this in the past while but it bears being mentioned again.

There is a really bad malware being spread via links in e-mail that take the user to a bad site or attachments in an e-mail that contain the bad software. Its name is CryptoLocker.

If the link is clicked on or the attachment is opened the software starts up and goes on to encrypt, that is make unavailable, EVERY file the user has access to. There are two ways to get out of the mess once the infected system is found and quarantined:
1.    Best Option: Recover the files from Previous Versions (Volume Shadow Copy snapshot) … may be out by a few hours.
2.    Okay Option: Recover or from Backup … may be a bit out of time in the form of hours.
3.    Worst Option: Pay the bad guys to decrypt the data and risk identity theft among other problems of handing over a credit card number.

Simple rule of thumb: NEVER click on a link in an e-mail and avoid opening attachments if at all possible (Especially ZIP archives). And, if a link must be clicked on in an e-mail hover the mouse cursor over the link to see where it leads to. If it looks suspicious please ask!

Our systems are designed to provide maximum recoverability however the snapshots and backups are timed throughout the day. So, if there is an infection some work may be lost!

As always, please be very careful and aware that bad folks out there are always on the hunt for more victims. No business large or small is exempt from these folks nefarious activities.

We are aware of firms, fortunately not our own clients, that are on the brink of possibly being lost due to CryptoLocker and bad or unavailable backups!

Thanks and have a wonderful day! :)

We do our best to keep folks aware of what is happening out there but things are getting even more nasty for e-mail transmissions.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

Chef de partie in the SMBKitchen
Find out more at
www.thirdtier.net/enterprise-solutions-for-small-business/

Windows Live Writer

Tuesday, 23 October 2012

Some Malware Tools

Here is a short list of some malware tools:

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

Windows Live Writer

Wednesday, 8 August 2012

Quick Links to MalwareBytes Program and Definitions Download

We sometimes need to use the MalwareBytes product to verify that a system is clean.

That site has links to both the program download on a third party site as well as the definition update file that can be important if a malware infection is afoot.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Thursday, 21 July 2011

Microsoft Security Essentials–False Positive on Adware: Win32/Hotbar

A number of our machines have been throwing the following warning from MSE:

image

Adware: Win32/Hotbar

Category: Adware

Description: This program has potentially unwanted behavior.

Recommended action: Review the alert details to see why the software was detected. If you do not like how the software operates or if you do not recognize and trust the publisher, consider blocking or removing the software.

Security Essentials detected programs that may compromise your privacy or damage your computer. You can still access the files that these programs use without removing them (not recommended). To access these files, select the Allow action and click Apply actions. If this option is not available, log on as administrator or ask the security administrator for help.

Items:

file:C:\Windows\Temp\7E04B5FB-F941-4DE0-ACA3-C0C397211F5F-Sigs\643683E7-6213-45C6-B3D0-151E26E31C81mpasdlta.vdm.new.temp

file:C:\Windows\Temp\7E04B5FB-F941-4DE0-ACA3-C0C397211F5F-Sigs\643683E7-6213-45C6-B3D0-151E26E31C81mpasdlta.vdm.old.temp

We sent out an e-mail to find out what was up.

It turns out that the flag is a false positive on MSE’s own update files with a fix in the works.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Thursday, 23 June 2011

WordPress Compromised – Time To Verify Things

With the number of folks using WordPress as their blogging platform, the news that the WordPress site has been compromised will be of great concern.

The date of the above post is June 21, 2011. What was not mentioned in the above post is a timeline for the compromise.

Hopefully the WordPress folks make that information available to help users figure out if they downloaded any content with malicious code in it.

Affected content:

Hat Tip: Derek Knight

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Tuesday, 10 May 2011

Via Phone: Hi, We are the National Internet Service and You are Sending Our Systems a Virus!

One of our client’s users had the presence of mind to pause for a moment when they were called at home this morning and heard the line:

Hi, we are the National Internet Service and your computer is sending our systems a virus! Please sit down at your computer and . . .

They interrupted the speaker and told them that they would be calling their IT support folks ASAP and hung up.

When things like this happen it is important to get in touch with the authorities that handle fraud cases such as this:

Contact for the Canadian Anti-Fraud Centre:

It's not always easy to spot a scam, and new ones are invented every day.

If you suspect that you may be a target of fraud, or if you have already sent funds, don't be embarrassed - you're not alone.

If you want to report a fraud, or if you need more information, contact The Canadian Anti- Fraud Centre:

Toll Free: 1-888-495-8501

Toll Free Fax: 1-888-654-9426
Email: info@antifraudcentre.ca

To report economic crime on-line please click here

One can only imagine how one can be fooled into providing all sorts of information to a caller like this.

A pearl of wisdom from my Dad: Never volunteer _anything_ in the way of information. Be specific, to the point, and KISS.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Monday, 9 May 2011

Mac Rogue Security Software

It was only a matter of time before folks started writing malware for Macs as Apple’s market share grew.

It is official: Sophos: Naked Security: Mother's Day search terms lead to Mac rogue security software

The following is a good demonstration of the malware’s attack on the Mac:

Malware Mac Attack

While Sophos goes on to plug their product for the Mac at the end of the article itself, this situation really begs the question: Will mainstream A/V vendors be in the same boat as they are today where we will need to go to a third party like Malwarebytes to remove the malware?

That is, will mainstream A/V products _still_ not be able to protect the Mac from this type of attack?

As is the case on the PC, one needs to be very aware of what they are doing at all times along with how to react when something like this happens.

In our opinion, Apple has lulled many into a false sense of security over the years. With their market share growing it was pretty obvious that these types of attacks were bound to happen. Now that they are we shall see if folks keep buying Macs.

UPDATE: Hat Tip: Jeremy of SFNIS via the SBS2K Yahoo List.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Monday, 2 May 2011

WindowsRecovery Malware – Who To Trust For Removal?

One of our client’s users picked up this lovely nasty:

image

image

Note the lack of Task Manager button in the above or below screenshots.

image

  • WindowsRecovery Malware

Now, we went to this site to download Malwarebytes and its updates:

image

Once we downloaded the two we dropped them onto a USB flash drive and plugged it into the infected machine.

When we managed to navigate to the USB flash drive the MB file was missing?!? We ended up needing to reveal hidden files in Windows Explorer as WindowsRecovery had managed to set the MB install file as hidden!

Okay, we have MB and its update installed. We were able to use the Start –> Run command to get to the mbam.exe file (Windows XP SP3 is where the infection is) but it would not update.

Once we started the MB scan and it began to pick up the infected files the malware rebooted the machine.

When we slaved up the infected machine’s hardware Microsoft Security Essentials picked up one infected file while MB found a few more. We dropped the drive back into the machine and WindowsRecovery was still there. :(

Do a Bing search for Remove WindowsRecovery and the following happens:

image

If we can’t get the machine clean using the “traditional” product in Malwarebytes then it is looking like the only option for us is to wipe and reload. There is no way we are going to trust many if not all of the sites that are in the results above. Especially all of the ones offering a “free removal tool”.

If this is a sign of the way things are going with malware infections we are going to stop wasting both our client’s time and ours and advise that we would image the machine, wipe it, and then reload it.

Now, here we are a little later on and what do we find but:

After reading through the above instructions, we will still recommend a wipe and reload. Our policy is to make this recommendation whenever a Trojan or Rootkit are involved. Once a system is owned in this manner there is virtually no way to guarantee ownership after “cleaning”.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Monday, 25 April 2011

Microsoft KB: How to send malware to Microsoft for analysis

We run across a lot of different bugs, that is malware or viruses, in our business.

Fortunately we can submit any bugs that we encounter to a number of different vendors.

One is Microsoft:

The above KB describes the many ways that we can submit the bug.

One is the following:

image

Note the How to prepare files for submission section later on in the article states:

How to prepare files for submission
Use care when you handle files that may be classified as malware. Add suspected malware files to a compressed archive file that uses a password. By doing this, you avoid infecting other computers when the files are in transit or when you send the files. To add the files to an archive file that uses a password, follow these steps.
Note If WinZip or a similar compression utility is installed, you can use it to create the archive. However, you must use the same file name and the same password that are included in these steps.
  1. In Windows Explorer, open the folder that contains the suspected malware files.
  2. Right-click a blank area in the window, point to New, and then click Compressed (zipped) Folder.
  3. Type malware.zip to name the new archive file, and then press ENTER.
  4. Drop the suspected malicious software files into the archive file as you would drop them into a typical Windows folder.
  5. Double-click the archive file.
  6. On the File menu, click Add a Password.
  7. In the Password box, type infected.
  8. In the Confirm Password box, retype infected, and then click OK.

If, during our searches we do not turn up any information on a bug that we have encountered we would follow through on submitting it just in case.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Thursday, 11 March 2010

Yet Another Attack Vector? LCD TVs As Zombies

Have a moment for some good reading?

While the reading may not be “good” in the sense of reading a good Star Trek novel (yes I read them ;) ), the implications of the TV OS hack methodologies explained in the above links gives one cause for pause.

The PC industry, especially on the Microsoft side with Apple recently taking up their security slack with key personnel hiring, has the infrastructure in place to address vulnerabilities. But, it looks as though vendors/manufacturers of products that drop some sort of OSS distro on their boxes will need to learn the same _hard_ lessons.

Currently, it looks to be quite simple to get into the LCD TVs with full shell access. No security, no authentication, nothing. Depending on the horsepower driving everything underneath it all, there are lots of ways to work this situation.

With many of these new devices needing an Internet connection for whatever new features they are implementing, there will be a need for us to be aware of whether they are properly secured or not.

If not secured, then a serious decision needs to be made about whether that device should be purchased or if purchased then if it should be plugged in to an Internet connection.

The thought of a worldwide BotNet of LCD TVs is hopefully a fiction . . . at least today.

Links and thoughts courtesy of ObiWan a fellow MVP. Thanks for that and the insights Andrea!

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Tuesday, 9 March 2010

It Seems That Even USB Battery Chargers Are Vulnerability Deliverers?

The wonders of the human mind. :|

Ingenuity comes in many forms, with the old cliché being Necessity is the mother of all invention. The necessity for the bad folks is grabbing our banking information, identity, or anything else of value from our computer.

While Energizer has no idea as of yet as to how the Trojan software was planted in their device’s monitoring software package, it is now pretty much out in the open that their product did indeed deliver a Trojan to folk’s computers if they installed it.

image

A while back, USB based electronic picture frames were delivering some malicious software to folk’s systems too.

It is getting to the point where we need two systems, whether one physical and one virtual, or otherwise so that we can split off the extremely important things such as online banking to a Vista/Win 7 box with UAC enabled, Standard User permissions, and _NO_ e-mail or other browsing allowed.

Obviously, the VM OS would be used to run the daily tasks with the host being the exclusive banking and sensitive transaction machine.

We flatten. We format and reset that drive to “0” leaving no sector unturned.

If the system’s owner refuses to allow for that and requires us to “clean” a Trojan or Rootkit infected machine we get them to sign a liability waiver that exonerates us before they walk out the door.

There are absolutely _NO_ guarantees when it comes to “cleaning” a system that had a backdoor in it. None. Nada. Zippo. Zilch.

The same goes for a compromised DC by the way.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

Friday, 10 July 2009

Rogue Infection: WARNING! YOUR’RE IN DANGER!

One of our clients received a link via an e-mail from a friend saying that they needed to purchase, download, and install a product to help keep their system running great!

Now, the machine is virtually unusable due to constant battering by pop ups from a product called System Security 2009 (also a Rogue AntiSpyware blog link). The rogue also prevents any .EXE from running on the system except an IE window that takes us to the “online activation system”.

We are going to flatten this system, extract their data from an earlier ShadowProtect image, and start fresh.

Since much of the infections legitimately found on the system are Trojan related, there can be no guarantees that removing them does not leave a backdoor of some sort into the system.

The desktop as it is now:

Security-Warning

And:

Security-Warning-2

Our client new something was well out of sorts due to the misspelling of “YOUR’RE” when the background started showing up.

Note the constant fight between the malware and AVG Free.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*All Mac on SBS posts will not be written on a Mac until we replace our now missing iMac! (previous blog post)

Windows Live Writer

Wednesday, 14 January 2009

AntiVirus 2009 on Google's Home Page?!? WinSystems.dll

This is probably one of the more interesting things to see on any given day:


Google has detected unregistered (sic) AntiVirus 2009 copy on your computer.

Now, besides the bad grammar, it is a little surprising that Google would be supporting any kind of A/V product.

If one is careful enough, the so-called IE Information Bar actually hides a bit of bad code that shows itself.

BleepingComputer.com has some great articles on removing the malware.

The articles point to a MalwareByte's A/V freeware product that actually does the removal: Malwarebytes' Anti-Malware.

In the above screenshot, the malware shows in the tray. The user knew that there was something up on the initial window, but did not realize that the only way to get rid of that window was via the Task Manager. So, clicking on the red X only served to give A/V 2009 a foothold into the system.

So, we downloaded the tool and ran it through. It cleaned out the system, but missed something. After the clean we were still getting the A/V 2009 hook on the Google Web page.

So, back to BleepingComputer.com: Antivirus 2009 Hijacks The Google Web Site. But, the winsrc.dll file mentioned in the article did not exist on this system.

Run IE with no add-ons and Google was clean.

So, a look into the Add-Ons manager in IE turned up:

IE Add-On for Research? winsystems.dll

Disable that add-on, and sure enough there was no more A/V 2009 on Google's home page.

A quick search for the file and a SHIFT+DEL and the file was gone.

The lesson here is quite simple: MalwareBytes is a great tool, but like any other malware fighting tool, it may miss on its searches once in a while. It managed to scan through and find a whole bunch of different stuff like the original A/V 2009 programs, search bars and the like, but it missed the winsystems.dll.

For users with Windows Vista, the UAC lesson is very simple: Cancel.

For users of Windows XP: Do Not Touch. Bring up the Task Manager and kill the software there.

The process in the Processes tab was AntiVirus2009.exe, so it was not too difficult to kill so we could get to the MalwareBytes site and download the cleaner tool as A/V 2009 always redirected to a "Get our product now or else you are doomed" type message page.

We really need to keep on top of training our users! In this case, we are dealing with a new client. So, in time, and with some Internet "Street Smarts" training, our new client's users will be more prone to avoid any malware infections.

Working against malware is one area where our experience, that is our working with the same settings and Internet Explorer Add-Ons, and knowing which Windows processes are the right ones to be there, can pay dividends in finding the source of the problem quickly and efficiently.

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists

*All Mac on SBS posts are posted on our in-house iMac via the Safari Web browser.

Tuesday, 28 October 2008

SBS 2008 Lab Test - Spam Filtering

The primary purpose of this post is to present our SBS 2008 lab users' e-mail addresses to the world as a spam trap.

Let's see just how good the Forefront and LiveOneCare for Server setup is.


Just in case you are wondering, the above users are setup in the SPRINGERS SBS domain as part of the book I am co-authoring with Harry Brelsford of SMB Nation fame tentatively called the SBS 2008 Blueprint.

Once we get things rolling along pretty good, we might even setup a couple "Out of Office" replies just to spice things up a bit! :)

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists

*All Mac on SBS posts are posted on our in-house iMac via the Safari Web browser.

Friday, 22 August 2008

"Anatomy of a malware scam" is a good malware read

Have a few minutes to spare?

How about checking out how creative malware scam artists are getting: The Register: Anatomy of a malware scam: The evil genius of XP Antivirus 2008.

From the article's conclusion:


This should serve as a dire warning to all: be extremely careful what you trust, and question everything that looks even remotely suspicious. For example, no website can run an anti-malware scan on your computer simply by your visiting the site. Any site that purports to do so is almost certainly run by criminal gangs.

No website should ever offer you to download an anti-malware package as soon as you visit the site. Any site that purports to do so is either run by criminal gangs or by an organization whose business practices are so deceptive that you should never consider doing business with it. A reputable site will present you with product information and then leave the downloading decision up to you, not force it upon you. No software that pushes the purchase decision so heavily in your face is likely to be legitimate.


Part of our responsibility as the go to person for our client's I.T. needs is knowing what the threat landscape looks like.

From there, we can educate them with a simple note every once in a while that provides some dos and don'ts while browsing the Internet.

UPDATE: The above article came via a link that I could not for the life of me find. Go figure ... it popped up when I logged into another machine.

Credit goes to Jesper's Blog: Anatomy of a Hack 2008 ... which is a good read in and of itself. My apologies for originally missing the credit Jesper!

Philip Elder
MPECS Inc.
Microsoft Small Business Specialists

*All Mac on SBS posts are posted on our in-house iMac via the Safari Web browser.