Trojan.Generic.5342054 (BitDefender), Trojan:Win32/Koutodoor.E (Microsoft), HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Koutodoor.e (v) (VIPRE), Trojan.MulDrop4.24670 (DrWeb), Trojan.Generic.5342054 (B) (Emsisoft), Koutodoor.gen.g (McAfee), Trojan.Koutodoor!gen (Symantec), Trojan.Win32.Koutodoor (Ikarus), Trojan.Generic.5342054 (FSecure), Crypt_s.BIY (AVG), Win32:Caxnet [Trj] (Avast), TROJ_KTODOOR.SMF (TrendMicro), Trojan.Generic.5342054 (AdAware)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 35d555a00317440c76b7dc57bd0f0475
SHA1: 04fceb8148b6bc26636017b385233310147715a6
SHA256: 5632798f3dfa13d99a375ca45447b0af42bf1461967f38b70943eb498bfe3176
SSDeep: 3072:Jnl8E3qUX9XeV6JsPLPjpOZ2IudKc5E4Ny:JP3BuPNcEXS4k
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 10:58:17
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):
%original file name%.exe:1796
The Trojan injects its code into the following process(es):No processes have been created.
File activity
The process %original file name%.exe:1796 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%System%\niph.dll (61440 bytes)
%System%\yoxfgx.bat (120 bytes)
%System%\drivers\iwzimim.sys (41760 bytes)
Registry activity
The process %original file name%.exe:1796 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BC 04 15 98 83 EE 0E F8 E4 CB A0 14 96 26 6C 8D"
[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%\iwzimim.sys" substitutes a pointer of ParseProcedure function for the object Device.
The Trojan's driver "%Drivers%\iwzimim.sys" substitutes a pointer of ParseProcedure function for the object Key.
Using the driver "%System%\drivers\iwzimim.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):
%original file name%.exe:1796
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%System%\niph.dll (61440 bytes)
%System%\yoxfgx.bat (120 bytes)
%System%\drivers\iwzimim.sys (41760 bytes)