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Removal instructions for VaccineCom

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  • Staff

What is VaccineCom?

The Malwarebytes research team has determined that VaccineCom 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 VaccineCom?

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


You will find this icon in your taskbar, flashing red and blue, and occasionally issuing warnings:


And see these warnings:





How did VaccineCom get on my computer?

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

How do I remove VaccineCom?

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 VaccineCom?

  • No, Malwarebytes' Anti-Malware removes VaccineCom completely.

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 VaccineCom rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.



Technical details for experts

Signs in a HijackThis log:

C:\Program Files\vaccinecom\vaccinecomstart.exe
C:\Program Files\vaccinecom\vaccinecom.exe

O4 - HKLM\..\Run: [vaccinecomstart.exe] C:\Program Files\vaccinecom\vaccinecomstart.exe

Alterations made by the installer:

File System
Adds the folder C:\Program Files\vaccinecom
Adds the file vaccinecomu.exe"="09:59 28/09/11 128040 bytes
Adds the file vaccinecomstart.exe"="10:00 28/09/11 15408 bytes
Adds the file vaccinecomlog.txt"="10:03 28/09/11 72 bytes
Adds the file vaccinecomd.dll"="10:00 28/09/11 936333 bytes
Adds the file vaccinecom.exe"="09:59 28/09/11 1132592 bytes
Adds the file uninst_vaccinecom.exe"="10:00 28/09/11 166448 bytes
Adds the file EGutil.dll"="10:00 28/09/11 62512 bytes
Adds the folder C:\Program Files\vaccinecom\SpeedBackup

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility]
"vaccinecomstart.exe"="'C:\Program Files\vaccinecom\vaccinecomstart.exe'"
"DisplayIcon"="'C:\Program Files\vaccinecom\uninst_vaccinecom.exe'"
"UninstallString"="'C:\Program Files\vaccinecom\uninst_vaccinecom.exe'"
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer]

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware

Database version: 7813

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

9/28/2011 10:09:09 AM
mbam-log-2011-09-28 (10-09-09).txt

Scan type: Quick scan
Objects scanned: 148668
Time elapsed: 46 second(s)

Memory Processes Infected: 2
Memory Modules Infected: 1
Registry Keys Infected: 1
Registry Values Infected: 2
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 8

Memory Processes Infected:
c:\program files\vaccinecom\vaccinecomstart.exe (Rogue.K.VaccineCom) -> 1328 -> Unloaded process successfully.
c:\program files\vaccinecom\vaccinecom.exe (Rogue.K.VaccineCom) -> 1536 -> Unloaded process successfully.

Memory Modules Infected:
c:\program files\vaccinecom\EGutil.dll (Rogue.K.VaccineCom) -> Delete on reboot.

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\VACCINECOM (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vaccinecomstart.exe (Rogue.K.VaccineCom) -> Value: vaccinecomstart.exe -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\vaccinecom\vaccinecom_nic (Rogue.K.VaccineCom) -> Value: vaccinecom_nic -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
c:\program files\vaccinecom\vaccinecomstart.exe (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\program files\vaccinecom\vaccinecom.exe (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\program files\vaccinecom\EGutil.dll (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\local settings\temporary internet files\Content.IE5\ISXPLGEB\egutil[1].dll (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\local settings\temporary internet files\Content.IE5\Q5PIP6JW\vaccinecomstart[1].exe (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\local settings\temporary internet files\Content.IE5\Q5PIP6JW\vaccinecom[1].exe (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\local settings\temporary internet files\Content.IE5\Y3PH3C5T\uninst_vaccinecom[1].exe (Rogue.K.VaccineCom) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\local settings\temporary internet files\Content.IE5\Y3PH3C5T\vaccinecomu[1].exe (Rogue.K.VaccineCom) -> 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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