Removed: C:\WINDOWS\system32\wbem\grpconv.exe (Bredolab)

I will tell you in this post how to fix the issue manually and how to clean it automatically using a special powerful removal tool. You can download the removal program for free here:

Malware: C:\sand-box\1.exe

Removed: C:\WINDOWS\system32\wbem\grpconv.exe

Detected by UnHackMe:

Item Name: wpv671289563543.exe
Author: Unknown
Related File: C:\WINDOWS\TEMP\WPV671289563543.EXE – random filename
Type: Running Processes

After first reboot detected by UnHackMe:

Item Name: userini
Author: Unknown
Type: Explorer Run

Item Name: wpv181289563741.exe
Author: Unknown
Related File: C:\WINDOWS\TEMP\WPV181289563741.EXE – random filename
Type: Running Processes

Detected manualy:

Default location: C:\WINDOWS\system32\wbem\grpconv.exe
MD5: EE60216F856BC9CB2DC601A080859C96
SHA1: 59AE8E08 EDD18ABA A612373E 2A6450E0 EADE9E45
File Size: 29 184

Removal Results: Success
Number of reboot: 2

How to quickly detect malware presence?

Registry: HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\RunGrpConv
Value: 0×00000001


Antivirus Version Last Update Result
F-Secure 9.0.16160.0 2010.11.13 Trojan.Generic.KD.64227
Kaspersky 2010.11.13 -
Microsoft 1.6301 2010.11.13 -
NOD32 5616 2010.11.13 -


MD5 ee60216f856bc9cb2dc601a080859c96

SHA1 59ae8e08edd18abaa612373e2a6450e0eade9e45

SHA256 0f3e70f521ec70be1a337f0156609a5b51bcc1abb14564bfd0546a05a7198241


When the program is executed, it creates the following registry subkeys and values:

Values added:1
HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\RunGrpConv: 0×00000001

Files added:3
C:\Documents and Settings\Administrator\Application Data\wiaservg.log
C:\Documents and Settings\Administrator\Local Settings\Temp\~TM4.tmp

Files deleted:2

Total changes:6

Recommended software:
UnHackMe anti-rootkit and anti-malware
RegRun Security Suite (Good choice for removal and protection)

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2. Double click on UnHackMe_setup.exe

You will see a confirmation screen with verified publisher: Greatis Software. Verified Publisher Greatis Software

Once UnHackMe has installed has installed the first Scan will start automatically

Review the detected threats

3. Carefully review the detected threats!

Click Remove button or False Positive.