Home Malware Programs Trojans Win32/Sirefef.DA

Win32/Sirefef.DA

Posted: November 30, 2011

Threat Metric

Threat Level: 9/10
Infected PCs: 658
First Seen: November 30, 2011
Last Seen: March 20, 2019
OS(es) Affected: Windows

Win32/Sirefef.DA is a terrible Trojan infection that uses multiple locations to set its interlinked copies. There is no need for all of the copies to be idle at once. Once the active copy of Win32/Sirefef.DA is spoiled, removed or is not able to run because of other reasons, one of the idle copies of Win32/Sirefef.DA would be activated. In case of detecting Win32/Sirefef.DA by running processes, idle copies would remain unnoticed. Win32/Sirefef.DA can download and install additional malware threats. Win32/Sirefef.DA can also distribute rogue security programs. Remove Win32/Sirefef.DA and all its idle and active duplicates immediately after detection.

Aliases

ZeroAccess.W [AVG]TR/Offend.kdv.582693.2 [AntiVir]Win32:Alureon-ASC [Rtk] [Avast]Artemis!DC93C705DC0A [McAfee]ZeroAccess.AM [AVG]Trojan/Win32.HDC [AhnLab-V3]TrojWare.Win32.Rootkit.ZAcces.HL [Comodo]Hider.PYO [AVG]Trojan.Win32.Hider [Ikarus]Backdoor/Win32.ZAccess [AhnLab-V3]RKIT/ZAccess.TE [AntiVir]Gen:Variant.Graftor.19317 [BitDefender]Win32:Rootkit-gen [Rtk] [Avast]Cryptic.DYR [AVG]W32/ZAccess.K [Fortinet]
More aliases (122)

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:



%WINDIR%\System32\drivers\Mpfp.sys File name: Mpfp.sys
Size: 120.13 KB (120136 bytes)
MD5: a3d1b64d07420e0b35a1dd35176685d8
Detection count: 295
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: August 16, 2012
file.dll File name: file.dll
Size: 54.78 KB (54784 bytes)
MD5: 72469400b5f00aadfaf3d8ce50eed9de
Detection count: 91
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 1, 2011
file.dll File name: file.dll
Size: 62.97 KB (62976 bytes)
MD5: 3a736c89d597b41037d33ada6834c601
Detection count: 90
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 1, 2011
%WINDIR%\System32\drivers\netbt.sys File name: netbt.sys
Size: 162.81 KB (162816 bytes)
MD5: e83b450a3adae2d9ef4170474d94ddcc
Detection count: 70
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 22, 2011
%WINDIR%\System32\drivers\tdx.sys File name: tdx.sys
Size: 71.68 KB (71680 bytes)
MD5: 149970620ad8432af66209f896a1de72
Detection count: 63
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 22, 2011
%APPDATA%\defender.exe File name: defender.exe
Size: 2.27 MB (2273792 bytes)
MD5: 5b32bba3c18e621fe28d7a5d27b54086
Detection count: 55
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: June 25, 2012
%WINDIR%\System32\drivers\tdx.sys File name: tdx.sys
Size: 72.19 KB (72192 bytes)
MD5: 02357d46a465b5e2c6d0bbf41694a5f8
Detection count: 37
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 22, 2011
%WINDIR%\System32\drivers\netbt.sys File name: netbt.sys
Size: 187.9 KB (187904 bytes)
MD5: 8afe3e241abe67effbc8dade5c898632
Detection count: 34
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 1, 2011
%WINDIR%\System32\drivers\cdrom.sys File name: cdrom.sys
Size: 67.07 KB (67072 bytes)
MD5: 769dca7ca8ed0eeefabb44bbbd01c388
Detection count: 19
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 5, 2011
%WINDIR%\System32\drivers\dfsc.sys File name: dfsc.sys
Size: 75.26 KB (75264 bytes)
MD5: 9bdd50d9f409fb55c3b6d209457f7d1f
Detection count: 19
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 27, 2011
%WINDIR%\System32\drivers\afd.sys File name: afd.sys
Size: 138.49 KB (138496 bytes)
MD5: 29877d87629b0b3a2eaba54309a40f81
Detection count: 19
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: January 19, 2012
%WINDIR%\System32\drivers\ipsec.sys File name: ipsec.sys
Size: 75.26 KB (75264 bytes)
MD5: dc93c705dc0aa177aa8cb14765d1ed80
Detection count: 19
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 17, 2012
%WINDIR%\System32\drivers\cdrom.sys File name: cdrom.sys
Size: 49.53 KB (49536 bytes)
MD5: 356f450df47c07f8e8b04f3c75098070
Detection count: 14
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 1, 2011
%WINDIR%\System32\drivers\mrxsmb.sys File name: mrxsmb.sys
Size: 456.32 KB (456320 bytes)
MD5: da2d90a63ee7b6b9a5cb585417aee8e0
Detection count: 12
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 6, 2011
%WINDIR%\System32\DRIVERS\i8042prt.sys File name: i8042prt.sys
Size: 52.73 KB (52736 bytes)
MD5: 3cbac102bb69efd14fca7e22add1053f
Detection count: 12
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\DRIVERS
Group: Malware file
Last Updated: December 23, 2011
%WINDIR%\System32\drivers\dfsc.sys File name: dfsc.sys
Size: 78.33 KB (78336 bytes)
MD5: 52136a5ff5a133eade88f7751e832a9f
Detection count: 12
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: November 19, 2012
%WINDIR%\System32\drivers\netbt.sys File name: netbt.sys
Size: 162.81 KB (162816 bytes)
MD5: 7f5591ea053ceb9be903d324156abf56
Detection count: 9
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 5, 2011
%WINDIR%\System32\drivers\serial.sys File name: serial.sys
Size: 64.51 KB (64512 bytes)
MD5: f5ee4ecd0f36c94ebaf7e1b54a7b64d9
Detection count: 9
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 6, 2011
%WINDIR%\System32\drivers\cdrom.sys File name: cdrom.sys
Size: 67.07 KB (67072 bytes)
MD5: 58d1fff21d1489204abe1affa3a61c1f
Detection count: 7
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 22, 2011
%WINDIR%\System32\drivers\avgldx86.sys File name: avgldx86.sys
Size: 230.6 KB (230608 bytes)
MD5: f9867790344efb968f17855e18fa05b9
Detection count: 2
File type: System file
Mime Type: unknown/sys
Path: %WINDIR%\System32\drivers
Group: Malware file
Last Updated: December 27, 2011
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