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Monitoring.actmon-computer-monitoring Analysis Report
Threat Submitted On: 12/7/2007 7:17:29 AM
Threat Analysed On: 12/7/2007 12:17:29 PM
Threat Updated On: 1/27/2011 10:12:39 PM
Type : Monitoring
Symptoms of actmon-computer-monitoring
  • Capture the activities performed by the user on a system
  • Captured information is sent to the intruder.
  • The intruder can access the compromised machine at real-time.
Alias : Monitoring.actmon-computer-monitoring
Md5 Hash : [d1fb7a8a1fbb003d74389d18f3a888b2]
File Size : (1593856 bytes)

Technical Details

Here are the Technical findings of our analysis team after analyzing this malware in detail :-

Creates the following infected Files on user's System
Delete the following Files to remove Infection
File: actmon computer monitoring manual.lnk
Path : %userprofile%\start menu\programs\actmoncm

Md5Hash :2617073b67c59c24d8fc2ca59e076307 ( 1585 bytes)
File: acmcc.exe
Path : %windir%\system32

Md5Hash :b9f33372188f8c8cee5e9a45e91e69af ( 1257472 bytes)
File: wskrnlc.dll
Path : %windir%\system32

Md5Hash :fbe8930e27d308a26acbfb6d344d2ee2 ( 438272 bytes)
File: wskrnld.dll
Path : %windir%\system32

Md5Hash :f14ef301e0c082185c06ec2647dd31c3 ( 36352 bytes)
Also creates the following files on user's System which are also created by Genuine Software :-
These file(s) can be kept as they are also created by genuine Software.
File : #[computer-name]#tejus2#.dat
Path : %allusersprofile%\application data\syswin

Md5Hash :06c57b35ffa0566d5e73e4d371346d0e ( 40910 bytes)
File : [randomname].exe
Path : %workingdir%

Md5Hash :d1fb7a8a1fbb003d74389d18f3a888b2 ( 1593856 bytes)
The following Registry Values are added to the provided Registry Keys :-
Delete the added Values from the Key to remove Infection
|__ Value Added :
syswin = ""%windir%\system32\syswin.exe" -at"
|__ Value Added :
wskrnl = ""%windir%\system32\wskrnl.exe" -at"
|__ Value Added :
errorcontrol = "[reg_dword, value: 00000001]"
|__ Value Added :
start = "[reg_dword, value: 00000003]"
|__ Value Added :
type = "[reg_dword, value: 00000001]"
Creates the following child process(s) on execution:



%windir%\system32\acmcc.exe acmcc.exe

%windir%\system32\wskrnl.exe -scmd

Creates the Following MUTEX(s) on user's System:-
Copies the Following Files to Given Location :-

Copies :wskrnl.exe

To : %windir%\system32\wskrnl.exe

Copies :wskrnlb.exe

To : %windir%\system32\wskrnlb.exe

Copies :wskrnlb.dll

To : %windir%\system32\wskrnlb.dll

Copies :wskrnlc.vxd

To : %windir%\system32\wskrnlc.vxd

Copies :wskrnlc.sys

To : %windir%\system32\drivers\wskrnlc.sys

Copies :wskrnlc.dll

To : %windir%\system32\wskrnlc.dll

Copies :wskrnld.dll

To : %windir%\system32\wskrnld.dll

Copies :wskrnle.dll

To : %windir%\system32\wskrnle.dll

Copies :acmcc.exe

To : %windir%\system32\acmcc.exe

Copies :acm-manual.chm

To : %windir%\system32\acm-manual.chm

Moves the Following Files to Given Location :-


1. %userprofile% Refers to the windows current user's profile folder. By default it is 'C:\Documents and Settings\[user]'
2. %windir% Refers to the windows root folder. By default it is 'C:\Windows'
3. %allusersprofile% Refers to the windows all users profile folder. By default it is 'C:\Documents and Settings\All Users'
4. %workingdir% Refers to the current directory in which user is working.

Important: We strongly recommend that you backup the Registry before making any changes to it. Incorrect changes to the Registry can result in permanent data loss or corrupted Files. Modify the malicious\suspicious Subkeys only.

Click Here for more recommended PC Security and Optimization Tools

To modify registry entries in Windows Operating System:
Follow Steps:
1. Click Start > Run
2. Type “regedit” : to open registry editor
3. Navigate to required registry Key from the Left Tree control and modify accordingly.

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