HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Koutodoor.e (v) (VIPRE), Trojan.Win32.Koutodoor!IK (Emsisoft)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 3f1147e479ce7d0f9f79ed595fc03654
SHA1: 1ebfe42c3dbf84de7893f523f464ce139a83f585
SHA256: 29a57e476263654dfe192901ea9ce46e99495fcebd08d3c7333a1700304951c6
SSDeep: 3072:hVfn 3hJ6DSDpVdsKb KftLosFlgh6RSL5UhmapsSSF3xAiXlp:uGDSDpbnb KposFlgKS1UxNo3x37
Size: 147712 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, Armadillov171, UPolyXv05_v6
Company: no certificate found
Created at: 2010-12-27 10:28:50
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
3f1147e479ce7d0:344
The Trojan injects its code into the following process(es):No processes have been created.
File activity
The process 3f1147e479ce7d0:344 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%System%\drivers\kedyc.sys (42144 bytes)
%System%\mwkjls.bat (120 bytes)
%System%\njnpr.dll (61440 bytes)
Registry activity
The process 3f1147e479ce7d0:344 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "15 A6 F3 9E 6A 96 68 4E 18 4C BA 94 AE 44 A9 22"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\NewStartPanel]
"{871C5380-42A0-1069-A2EA-08002B30309D}" = "0"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\ClassicStartMenu]
"{871C5380-42A0-1069-A2EA-08002B30309D}" = "0"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\NewStartPanel]
"{871C5380-42A0-1069-A2EA-08002B30309D}" = "0"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime]
"SID" = "S-1-5-21-606747145-1060284298-839522115-1003"
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Trojan's driver "%Drivers%\kedyc.sys" substitutes a pointer of ParseProcedure function for the object Device.
The Trojan's driver "%Drivers%\kedyc.sys" substitutes a pointer of ParseProcedure function for the object Key.
Using the driver "%System%\drivers\kedyc.sys" the Trojan controls creation and closing of processes by installing the process notifier.
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
3f1147e479ce7d0:344
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%System%\drivers\kedyc.sys (42144 bytes)
%System%\mwkjls.bat (120 bytes)
%System%\njnpr.dll (61440 bytes)