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What is GreenVaccine?

The Malwarebytes research team has determined that GreenVaccine 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 GreenVaccine?

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

How did GreenVaccine get on my computer?

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

How do I remove GreenVaccine?

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 GreenVaccine?

  • No, Malwarebytes' Anti-Malware removes GreenVaccine 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 GreenVaccine 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\greenvaccine\greenvaccine.exe

Alterations made by the installer:

  File System
===============
In the existing folder C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\18GY3K5D
Adds the file bill_btn[1].gif"="13:08 09/08/10 3346 bytes
Adds the file global[2].css"="13:07 09/08/10 7048 bytes
Adds the file pt_btn1[1].gif"="13:08 09/08/10 237 bytes
Adds the file step1[1].htm"="13:07 09/08/10 42405 bytes
Adds the file tab[1].gif"="13:08 09/08/10 80 bytes
Adds the file uninst_greenvaccine[1].exe"="13:03 09/08/10 180840 bytes
Adds the file yak_app[1].htm"="12:55 09/08/10 13723 bytes
In the existing folder C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\ISF6HJK1
Adds the file close[1].gif"="13:08 09/08/10 167 bytes
Adds the file greenvaccined[1].dll"="13:03 09/08/10 912074 bytes
Adds the file pt_btn2[1].gif"="13:08 09/08/10 236 bytes
Adds the file round_top[1].gif"="13:08 09/08/10 111 bytes
Adds the file skt[1].gif"="13:08 09/08/10 3882 bytes
Adds the file step1[1].htm"="13:07 09/08/10 131 bytes
In the existing folder C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\OAPPQD53
Adds the file autolayer_bg[1].jpg"="13:08 09/08/10 20997 bytes
Adds the file autolayer_btn[1].jpg"="13:08 09/08/10 3675 bytes
Adds the file greenvaccine[1].exe"="12:59 09/08/10 639080 bytes
Adds the file greenvaccinedata[1].txt"="13:04 09/08/10 18432 bytes
Adds the file left_side[1].gif"="13:07 09/08/10 65 bytes
Adds the file lgt[1].gif"="13:08 09/08/10 4740 bytes
Adds the file round_bottom[1].gif"="13:08 09/08/10 112 bytes
Adds the file top[1].gif"="13:08 09/08/10 21940 bytes
In the existing folder C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\VAD23EEL
Adds the file footer[1].gif"="13:08 09/08/10 2125 bytes
Adds the file greenvaccinebk[1].exe"="13:04 09/08/10 227432 bytes
Adds the file greenvaccineu[1].exe"="12:56 09/08/10 105576 bytes
Adds the file kt[1].gif"="13:08 09/08/10 5562 bytes
Adds the file pay_yak_btn[1].gif"="13:08 09/08/10 269 bytes
Adds the file right_side[1].gif"="13:08 09/08/10 69 bytes
Adds the file site_yak_btn[1].gif"="13:08 09/08/10 261 bytes
Adds the file step1[1].js"="13:07 09/08/10 8487 bytes
Adds the folder C:\Program Files\greenvaccine
Adds the file greenvaccineu.exe"="12:56 09/08/10 105576 bytes
Adds the file greenvaccinedata"="13:04 09/08/10 18432 bytes
Adds the file greenvaccined.dll"="13:03 09/08/10 912074 bytes
Adds the file greenvaccinebk.exe"="13:04 09/08/10 227432 bytes
Adds the file greenvaccine.exe"="12:59 09/08/10 639080 bytes
In the existing folder C:\WINDOWS\system32
Adds the file uninst_greenvaccine.exe"="13:03 09/08/10 180840 bytes


Registry
===============
[HKEY_LOCAL_MACHINE\SOFTWARE\greenvaccine]
"inspectDay"="'2010-08-09'"
"updateDay"="'2010-08-03'"
"today"="'2010-08-09'"
"ver6"="'20100303'"
"ver5"="'20100303'"
"ver4"="'20100401'"
"ver3"="'20100349'"
"ver2"="'20100505'"
"ver1"="'20100326'"
"greenvaccine_nic"="'08:00:27:5F:34:F5'"
"installmode"="'2'"
"code1"="'greenvaccine'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility]
"jupiter"="'189852'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\greenvaccine]
"NoRepair"="1"
"NoModify"="1"
"DisplayIcon"="'C:\WINDOWS\system32\uninst_greenvaccine.exe'"
"UninstallString"="'C:\WINDOWS\system32\uninst_greenvaccine.exe'"
"URLInfoAbout"="'http://www.greenvaccine.co.kr'"
"HelpLink"="'http://www.greenvaccine.co.kr'"
"DisplayVersion"="'1.2'"
"DisplayName"="'greenvaccine'"
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer]
"greenvaccine_greenvaccine"="'1'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4410

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

8/9/2010 1:16:41 PM
mbam-log-2010-08-09 (13-16-41).txt

Scan type: Quick scan
Objects scanned: 118260
Time elapsed: 3 minute(s), 37 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 0
Registry Keys Infected: 2
Registry Values Infected: 1
Folders Infected: 1
Files Infected: 11

Memory Processes Infected:
C:\Program Files\greenvaccine\greenvaccine.exe (Rogue.GreenVaccine) -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

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

Registry Values Infected:
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\greenvaccine_greenvaccine (Rogue.GreenVaccine) -> Quarantined and deleted successfully.

Folders Infected:
C:\Program Files\greenvaccine (Rogue.GreenVaccine) -> Quarantined and deleted successfully.

Files Infected:
C:\Program Files\greenvaccine\greenvaccine.exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\greenvaccinesetup.exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\uninst_greenvaccine.exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\18GY3K5D\uninst_greenvaccine[1].exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\OAPPQD53\greenvaccine[1].exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\VAD23EEL\greenvaccinebk[1].exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\VAD23EEL\greenvaccineu[1].exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Program Files\greenvaccine\greenvaccinebk.exe (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Program Files\greenvaccine\greenvaccined.dll (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Program Files\greenvaccine\greenvaccinedata (Rogue.GreenVaccine) -> Quarantined and deleted successfully.
C:\Program Files\greenvaccine\greenvaccineu.exe (Rogue.GreenVaccine) -> 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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