Home Malware Programs Worms Worm.Abfewsm.A

Worm.Abfewsm.A

Posted: September 14, 2011

Threat Metric

Threat Level: 5/10
Infected PCs: 283
First Seen: December 8, 2010
Last Seen: December 18, 2022
OS(es) Affected: Windows

Worm.Abfewsm.A is a malicious computer worm that infects computers by making copies of itself in the folder used for files to be written into CDs. Worm.Abfewsm.A is able to change a variety of PC system services, including some firewall settings and disable registry editors and Control Panel. Worm.Abfewsm.A appears on an affected system as a file that uses the Windows Explorer icon. Worm.Abfewsm.A also creates a shortcut with no icon that points to itself. Worm.Abfewsm.A creates system files that contain settings it uses and registry entries to enable its copy to automatically run every time Windows starts. Worm.Abfewsm.A copies itself as certain system files to make sure that the files are included when a CD is written to a specific location. When a CD is written from a computer infected with Worm.Abfewsm.A and then it's run on another computer, Worm.Abfewsm.A attaches itself to the CD and automatically installs on the other computer. Worm.Abfewsm.A modifies registry entries to prevent the system firewall from operating. Worm.Abfewsm.A modifies the firewall policy so that it's tagged as an authorized program and is able to bypass the firewall. Worm.Abfewsm.A also disables the Control Panel tools and the registry editor.

Aliases

Worm/Generic.BBIE [AVG]Win32/Khatraxe.A [eTrust-Vet]Mal/HckPk-E [Sophos]TR/Autoit.tkw [AntiVir]Worm.Win32.Autoit.FQ0 [Comodo]Worm/Autoit.YKR [AVG]Dropper/Win32.Autoit [AhnLab-V3]Worm.AutoIt.k [CAT-QuickHeal]Worm/Autoit.AECA [AVG]Win-Trojan/Autorun.506687 [AhnLab-V3]TR/Crypt.CFI.Gen [AntiVir]Worm.Win32.Autorun.Autoit_AH0 [Comodo]Trojan.Generic.2323748 [BitDefender]Trojan-Dropper.Win32.Autoit.y [Kaspersky]Trojan [K7AntiVirus]
More aliases (108)

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:



C:\Users\<username>\Desktop\MIRC__2020\MIRC\R-ReSuRReCTiOn_ScRiPt\mIRC.exe File name: mIRC.exe
Size: 2.75 MB (2756096 bytes)
MD5: faa932b50030d848385f9ac6a215e5ba
Detection count: 59
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\Desktop\MIRC__2020\MIRC\R-ReSuRReCTiOn_ScRiPt\mIRC.exe
Group: Malware file
Last Updated: November 30, 2021
%WINDIR%\system32\KHATRA.exe File name: KHATRA.exe
Size: 715.58 KB (715583 bytes)
MD5: b58067d75a08193f86a9afa4d8d14404
Detection count: 28
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\system32
Group: Malware file
Last Updated: December 11, 2012
C:\respaldos\respaldo f\vacuna\pqremovezotob.com File name: pqremovezotob.com
Size: 1.93 MB (1935360 bytes)
MD5: 825bd2da5eb9372a5bd61fb10e2e5c18
Detection count: 26
File type: Command, executable file
Mime Type: unknown/com
Path: C:\respaldos\respaldo f\vacuna\pqremovezotob.com
Group: Malware file
Last Updated: December 18, 2022
%WINDIR%\Xplorer.exe File name: Xplorer.exe
Size: 1.4 MB (1407967 bytes)
MD5: 6a5867abd4754ceac34e164ba608f37b
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%
Group: Malware file
Last Updated: December 21, 2010
%WINDIR%\system32\KHATRA.exe File name: KHATRA.exe
Size: 506.68 KB (506687 bytes)
MD5: b4380864d64c91c7501aa7ff7118817a
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\system32
Group: Malware file
Last Updated: December 8, 2010
%WINDIR%\system32\KHATRA.exe File name: KHATRA.exe
Size: 506.68 KB (506687 bytes)
MD5: 15dfa7c7c644a9a9e1d4834af9d5337c
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\system32
Group: Malware file
Last Updated: February 9, 2011

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\..\..{Subkeys}HKLM\SYSTEM\ControlSet001\Services\mnmsrvc
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