Home Malware Programs Trojans Comroki

Comroki

Posted: November 30, 2010

Threat Metric

Threat Level: 8/10
Infected PCs: 166
First Seen: November 30, 2010
Last Seen: June 10, 2022
OS(es) Affected: Windows

Comroki (Trojan:Win32/Comroki) is a Trojan that performs numerous typical malware actions on the affected computer. Comroki can involve files that run applications without the computer user's knowledge or permission, open a port and use it to obtain unauthorized remote access to the corrupted PC, disable security applications, hide malicious actions by modifying processes in the targeted PC, create copies of themselves to system-protected folders, try to proliferate using Autorun functionality, modify firewall to avoid security settings, modify the PC settings so Comroki loads automatically every time the PC user start the computer system, install an unsigned driver, and are spread by applications typically used to conceal malware infections.

Aliases

Generic7_c.AEBP [AVG]W32/AutoRun.ELKK!worm [Fortinet]Worm/Win32.AutoRun [AhnLab-V3]Mal/Generic-S [Sophos]Worm.Win32.AutoRun.elkk [Kaspersky]Trojan Horse [Symantec]Artemis!4D414FFAAD6A [McAfee]Worm.AutoRun.elkk [CAT-QuickHeal]Generic7_c.AFMA [AVG]W32/AutoRun.ELLD!worm [Fortinet]Heuristic.BehavesLike.Win32.Suspicious-BAY.G [McAfee-GW-Edition]Worm.Win32.AutoRun.elld [Kaspersky]Artemis!84D5CC0E4DF7 [McAfee]Worm.AutoRun.elld [CAT-QuickHeal]Generic28.BFXI [AVG]
More aliases (252)

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



%USERPROFILE%\Application Data\javaw.exe File name: javaw.exe
Size: 40.96 KB (40960 bytes)
MD5: f1d754baf7363a4fc5c1e4ed21f6d446
Detection count: 62
File type: Executable File
Mime Type: unknown/exe
Path: %USERPROFILE%\Application Data
Group: Malware file
Last Updated: April 27, 2012
%APPDATA%\SysWin\lsass.exe File name: lsass.exe
Size: 180.73 KB (180736 bytes)
MD5: 47b6f8f390e1a363b34c567e6edf98ba
Detection count: 60
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%\SysWin
Group: Malware file
Last Updated: May 9, 2011
%TEMP%\ncdgdnx\svchost.exe File name: svchost.exe
Size: 199.68 KB (199680 bytes)
MD5: e7a4b734010c0cda527301b8ddaef469
Detection count: 52
File type: Executable File
Mime Type: unknown/exe
Path: %TEMP%\ncdgdnx
Group: Malware file
Last Updated: June 10, 2011
%WINDIR%\smss.exe File name: smss.exe
Size: 232.44 KB (232448 bytes)
MD5: d6339027f512f30cfe0e44e666d2eaad
Detection count: 32
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%
Group: Malware file
Last Updated: December 7, 2010
%APPDATA%\smss.exe File name: smss.exe
Size: 23.04 KB (23040 bytes)
MD5: f993e45aa3e324d6092867d22c7f9d04
Detection count: 14
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: November 30, 2010
%APPDATA%\Microsoft\lsass.exe File name: lsass.exe
Size: 212.99 KB (212992 bytes)
MD5: 875c1a75c71137a8a088bd5a53acbedb
Detection count: 14
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%\Microsoft
Group: Malware file
Last Updated: February 6, 2013
C:\Program Files (x86)\Temp\___BeforeSetup.exe File name: ___BeforeSetup.exe
Size: 605.15 KB (605155 bytes)
MD5: 4d414ffaad6a0d0aa92744ba93e39dba
Detection count: 14
File type: Executable File
Mime Type: unknown/exe
Path: C:\Program Files (x86)\Temp\___BeforeSetup.exe
Group: Malware file
Last Updated: June 10, 2022
%PROGRAMFILES%\Windows NT\Accessories\svchost.exe File name: svchost.exe
Size: 37.37 KB (37376 bytes)
MD5: c4aa4e304fee39edf926612fed2ca340
Detection count: 9
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\Windows NT\Accessories
Group: Malware file
Last Updated: December 9, 2010
%WINDIR%\TEMP\hexdump.exe File name: hexdump.exe
Size: 60 KB (60004 bytes)
MD5: 51d4ae8c8347d363d414f0838f0d793c
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\TEMP
Group: Malware file
Last Updated: June 10, 2011
%APPDATA%\SysWin\lsass.exe File name: lsass.exe
Size: 187.39 KB (187392 bytes)
MD5: f2d223d6bd59d4e630d4a563425d7715
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%\SysWin
Group: Malware file
Last Updated: April 18, 2011
%WINDIR%\SysWOW64\crrss.exe File name: crrss.exe
Size: 52.22 KB (52224 bytes)
MD5: 6df4ee26c599c9e1125d579dd230a462
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\SysWOW64
Group: Malware file
Last Updated: February 24, 2012
%LOCALAPPDATA%\Windows Live Reader\lsass.exe File name: lsass.exe
Size: 13.31 KB (13312 bytes)
MD5: 3150eb89ab13861a9c6a9ee9d183d07e
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %LOCALAPPDATA%\Windows Live Reader
Group: Malware file
Last Updated: October 30, 2012
%TEMP%\Java.exe File name: Java.exe
Size: 75.77 KB (75776 bytes)
MD5: fbcb73967c3b45861a26a10592a7f899
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %TEMP%
Group: Malware file
Last Updated: February 7, 2013

Registry Modifications

The following newly produced Registry Values are:

Regexp file mask%ALLUSERSPROFILE%\WOW64\csrss.exe
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