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What is VaccineU?

The Malwarebytes research team has determined that VaccineU is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with VaccineU?

This is how the main screen of the rogue application looks:

main.png

You will find these icons on your desktop and in your taskbar:

icons.png

And see these warnings:

warning1.png

warning2.png

warning3.png

warning4.png

warning5.png

How did VaccineU get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was downloaded from their site.

How do I remove VaccineU?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.

  • Please download Malwarebytes' Anti-Malware to your desktop.
  • Double-click mbam-setup.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware

    [*]Then click Finish.

    [*]If an update is found, it will download and install the latest version.

    [*]Once the program has loaded, select Perform quick scan, then click Scan.

    [*]When the scan is complete, click OK, then Show Results to view the results.

    [*]Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.

    [*]When completed, a log will open in Notepad. The rogue application should now be gone.

Is there anything else I need to do to get rid of VaccineU?

  • The shortcut called vaccineu on the desktop can be deleted if it belonged to the rogue.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the VaccineU rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

protection1.png

protection.png

Technical details for experts

Signs in a HijackThis log:

C:\Program Files\vaccineu\vaccineu.exe
C:\Program Files\vaccineu\etc\VUReg.exe

O4 - HKLM\..\Run: [vaccineu] "C:\Program Files\vaccineu\vaccineu.exe" /Scan

Alterations made by the installer:


File System
===============
In the existing folder C:\Documents and Settings\{username}\Application Data\Microsoft\Internet Explorer\Quick Launch
Adds the file vaccineu.lnk"="11:06 28/05/11 722 bytes
In the existing folder C:\Documents and Settings\{username}\Desktop
Adds the file vaccineu.lnk"="11:06 28/05/11 704 bytes
Adds the folder C:\Documents and Settings\{username}\Local Settings\Temp\nsd4.tmp
Adds the file stack.dll"="11:06 28/05/11 10240 bytes
In the existing folder C:\Documents and Settings\{username}\Start Menu
Adds the file vaccineu.lnk"="11:06 28/05/11 1570 bytes
Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\vaccineu
Adds the file vaccineu.lnk"="11:06 28/05/11 1582 bytes
Adds the file vaccineu ????.lnk"="11:06 28/05/11 1577 bytes
Adds the folder C:\Program Files\vaccineu
Adds the file VUUpdateServer.dat"="11:08 28/05/11 632 bytes
Adds the file VUEngine.dll"="08:16 06/05/11 663552 bytes
Adds the file VUAutoUpdate.exe"="06:53 18/05/11 450560 bytes
Adds the file vaccineu.exe"="10:12 18/05/11 790528 bytes
Adds the file Uninstall.exe"="11:06 28/05/11 217311 bytes
Adds the file conf.ini"="11:08 28/05/11 220 bytes
Adds the folder C:\Program Files\vaccineu\update
Adds the folder C:\Program Files\vaccineu\db
Adds the file vsdb.dat"="11:08 28/05/11 172472 bytes
Adds the file pwdb.dat"="11:08 28/05/11 342528 bytes
Adds the file inter.dll"="11:08 28/05/11 231616 bytes
Adds the file filter.dll"="11:08 28/05/11 232 bytes
Adds the file avmon.dat"="11:07 28/05/11 226368 bytes
Adds the file adtc.dat"="11:08 28/05/11 9976 bytes
Adds the file adsub.dat"="11:08 28/05/11 225048 bytes
Adds the file addb.dat"="11:08 28/05/11 907384 bytes
Adds the folder C:\Program Files\vaccineu\etc
Adds the file VUReg.exe"="11:44 18/05/11 266240 bytes
Adds the file VUmonRemote.dll"="08:19 06/05/11 225280 bytes
Adds the file VUMon.exe"="14:46 17/05/11 278528 bytes
Adds the file VUFilterDriver.SYS"="08:19 06/05/11 43008 bytes
Adds the folder C:\Program Files\vaccineu\Lang
Adds the file kr.xml"="06:48 18/05/11 8877 bytes
Adds the folder C:\Program Files\vaccineu\Log
Adds the file Report.txt"="11:08 28/05/11 1113 bytes
Adds the folder C:\Program Files\vaccineu\skin
Adds the file default.avs"="11:07 28/05/11 647187 bytes
Adds the folder C:\Program Files\vaccineu\temp

Registry
===============
[HKEY_LOCAL_MACHINE\SOFTWARE\vaccineu]
"Install_Dir"="'C:\Program Files\vaccineu'"
"pid"="'home'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"vaccineu"="'"C:\Program Files\vaccineu\vaccineu.exe" /Scan'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\vaccineu]
"DisplayIcon"="'"C:\Program Files\vaccineu\Uninstall.exe"'"
"UninstallString"="'"C:\Program Files\vaccineu\Uninstall.exe"'"
"DisplayName"="'vaccineu'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 6698

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

5/28/2011 11:19:27 AM
mbam-log-2011-05-28 (11-19-27).txt

Scan type: Quick scan
Objects scanned: 129788
Time elapsed: 4 minute(s), 27 second(s)

Memory Processes Infected: 2
Memory Modules Infected: 1
Registry Keys Infected: 1
Registry Values Infected: 1
Folders Infected: 8
Files Infected: 22

Memory Processes Infected:
c:\program files\vaccineu\vaccineu.exe (Rogue.EbizNetwork) -> 1200 -> Unloaded process successfully.
c:\program files\vaccineu\etc\VUReg.exe (Rogue.VirusCure.K) -> 2444 -> Unloaded process successfully.

Memory Modules Infected:
c:\program files\vaccineu\VUEngine.dll (Rogue.EbizNetwork) -> Delete on reboot.

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\vaccineu (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vaccineu (Rogue.EbizNetwork) -> Value: vaccineu -> Quarantined and deleted successfully.

Folders Infected:
c:\program files\vaccineu (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\etc (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\Lang (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\Log (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\skin (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\temp (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\update (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.

Files Infected:
c:\program files\vaccineu\vaccineu.exe (Rogue.EbizNetwork) -> Quarantined and deleted successfully.
c:\program files\vaccineu\VUEngine.dll (Rogue.EbizNetwork) -> Quarantined and deleted successfully.
c:\program files\vaccineu\etc\VUReg.exe (Rogue.VirusCure.K) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\vaccineu_home.exe (Rogue.VirusCure.K) -> Quarantined and deleted successfully.
c:\program files\vaccineu\vuupdateserver.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\conf.ini (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\uninstall.exe (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\vuautoupdate.exe (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\addb.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\adsub.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\adtc.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\avmon.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\filter.dll (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\inter.dll (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\pwdb.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\db\vsdb.dat (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\etc\vufilterdriver.sys (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\etc\VUMon.exe (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\etc\vumonremote.dll (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\Lang\kr.xml (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\Log\Report.txt (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.
c:\program files\vaccineu\skin\default.avs (Rogue.K.Vaccineu) -> Quarantined and deleted successfully.

As mentioned before the full version of Malwarebytes' Anti-Malware could have protected your computer against this threat.

We use different ways of protecting your computer(s):

  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention

Save yourself the hassle and get protected.

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