Home Malware Programs Backdoors Backdoor.TDSS

Backdoor.TDSS

Posted: December 2, 2008

Threat Metric

Ranking: 11,269
Threat Level: 8/10
Infected PCs: 159
First Seen: July 24, 2009
Last Seen: May 14, 2022
OS(es) Affected: Windows

Backdoor.TDSS is a malicious parasite that is commonly downloaded and installed onto your computer through security holes. Once inside your machine, Backdoor.TDSS will embed itself into the registry in order to open up an unsecured backdoor in your system. This backdoor can be exploited by a hacker to give clear, unfettered access to your PC and any data stored on it. This threat runs in stealth mode, therefore remaining undetected by the user while performing its malicious acts. This threat is commonly associated with rogue antispyware products, such as Antivirus 2009. Backdoor.TDSS is considered a high-level threat and should be removed from your system immediately.

Aliases

Trojan/Win32.Hiloti [AhnLab-V3]Gen:Variant.Hiloti.1 [BitDefender]Hiloti.gen.e [McAfee]Hiloti.BC [AVG]Trojan.Win32.Hiloti [Ikarus]Hiloti.BD [AVG]Trojan.Hiloti [Ikarus]Trojan.Win32.Hiloti.aa (v) [Sunbelt]Win32/FakeAV.I!generic [eTrust-Vet]BackDoor.Tdss [DrWeb]Mal/Hiloti-D [Sophos]W32/Hiloti.I.gen!Eldorado [F-Prot]a variant of Win32/Cimag.DF [NOD32]a variant of Win32/Kryptik.FGP [NOD32]Artemis!3F3440EA64EE [McAfee]
More aliases (384)

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to Backdoor.TDSS may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.

Download SpyHunter's Malware Scanner

Note: SpyHunter's free version is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware tool to remove the malware threats. Learn more on SpyHunter. If you would like to uninstall SpyHunter for any reason, please follow these uninstall instructions. To learn more about our policies and practices, visit our EULA, Privacy Policy and Threat Assessment Criteria .

Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.

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:



twunk_32x.exe File name: twunk_32x.exe
Size: 712.7 KB (712704 bytes)
MD5: 4cef8d106ee726d4fdb7774940b792f3
Detection count: 91
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 21, 2010
C:\Users\Misho\AppData\Local\Temp\googledownload.exe\googledownload.exe File name: googledownload.exe
Size: 61.44 KB (61440 bytes)
MD5: 1bc09e91c70a6a9ccbaae4d27ce71ca6
Detection count: 86
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\Misho\AppData\Local\Temp\googledownload.exe\
Group: Malware file
Last Updated: May 9, 2021
ktk57D9.tmp.exe File name: ktk57D9.tmp.exe
Size: 467.45 KB (467456 bytes)
MD5: a34d514b84b97d75c54584dcb690b292
Detection count: 86
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
cliconfg64.exe File name: cliconfg64.exe
Size: 712.7 KB (712704 bytes)
MD5: e426729030aebc15a65994819dce721f
Detection count: 86
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 21, 2010
winhbt.exe File name: winhbt.exe
Size: 38.4 KB (38400 bytes)
MD5: 528e550562c2acc02885c29dca6e092c
Detection count: 85
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 21, 2010
%LOCALAPPDATA%\wpscrict.dll File name: wpscrict.dll
Size: 74.24 KB (74240 bytes)
MD5: 8f65644223a04d8393a460ebeee38a17
Detection count: 83
File type: Dynamic link library
Mime Type: unknown/dll
Path: %LOCALAPPDATA%\
Group: Malware file
Last Updated: May 18, 2012
%WINDIR%\kcat432.dll File name: kcat432.dll
Size: 76.8 KB (76800 bytes)
MD5: 68f1e7437c3fece769937c4b8cb3bc15
Detection count: 82
File type: Dynamic link library
Mime Type: unknown/dll
Path: %WINDIR%\
Group: Malware file
Last Updated: January 9, 2011
kbiwkmvttkqppj.dll File name: kbiwkmvttkqppj.dll
Size: 19.96 KB (19968 bytes)
MD5: 8966eb3f8a03c014426def4449312ea2
Detection count: 76
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 11, 2009
gasfkydovvwqoh.dll File name: gasfkydovvwqoh.dll
Size: 19.45 KB (19456 bytes)
MD5: 01a45c33177509afc09d99bf05998639
Detection count: 62
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 11, 2009
iemodule.dll File name: iemodule.dll
Size: 2.63 MB (2632704 bytes)
MD5: 79a19899cf8b2dcbdb87962bf22701f8
Detection count: 61
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: January 8, 2010
clspackxq.exe File name: clspackxq.exe
Size: 671.74 KB (671744 bytes)
MD5: 70f6b2522ecf2e51b98e737fdb3cf81e
Detection count: 60
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 8, 2010
%LOCALAPPDATA%\KBDHReo.dll File name: KBDHReo.dll
Size: 73.72 KB (73728 bytes)
MD5: 4574adfe1adb6fd636c71aa06b309cff
Detection count: 56
File type: Dynamic link library
Mime Type: unknown/dll
Path: %LOCALAPPDATA%\
Group: Malware file
Last Updated: December 7, 2010
%WINDIR%\kbdmsid.dll File name: kbdmsid.dll
Size: 74.75 KB (74752 bytes)
MD5: 1d62f636ac023971f898fb11061af152
Detection count: 40
File type: Dynamic link library
Mime Type: unknown/dll
Path: %WINDIR%\
Group: Malware file
Last Updated: December 6, 2010
Installer.exe File name: Installer.exe
Size: 489.47 KB (489472 bytes)
MD5: ba211925f478dc1f052dabff6b2f79ec
Detection count: 16
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 8, 2010
mplay32xe.exe File name: mplay32xe.exe
Size: 258.56 KB (258560 bytes)
MD5: 550d82300b5126d7b00cf4aede871d7e
Detection count: 16
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: April 8, 2010
%LOCALAPPDATA%\aswdwi2.dll File name: aswdwi2.dll
Size: 73.21 KB (73216 bytes)
MD5: a07fd1af85d17411ee5c6d180cc11066
Detection count: 16
File type: Dynamic link library
Mime Type: unknown/dll
Path: %LOCALAPPDATA%\
Group: Malware file
Last Updated: April 18, 2011
%LOCALAPPDATA%\hFWiopl7.dll File name: hFWiopl7.dll
Size: 76.28 KB (76288 bytes)
MD5: 243c2c0ba2ec68df66645eea5393e0b4
Detection count: 14
File type: Dynamic link library
Mime Type: unknown/dll
Path: %LOCALAPPDATA%\
Group: Malware file
Last Updated: February 14, 2011
wscsvc32.exe File name: wscsvc32.exe
Size: 1 MB (1002496 bytes)
MD5: 09ea9196890c912a2cf040498ed63a56
Detection count: 10
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
%WINDIR%\wdbgmeg.dll File name: wdbgmeg.dll
Size: 73.72 KB (73728 bytes)
MD5: 69fe1c421f3c55abc7a66923b1d5c20a
Detection count: 4
File type: Dynamic link library
Mime Type: unknown/dll
Path: %WINDIR%\
Group: Malware file
Last Updated: December 7, 2010
D.tmp File name: D.tmp
Size: 50.17 KB (50176 bytes)
MD5: 3f3440ea64eee1ddbe1a1a6b063105b9
Detection count: 3
File type: Temporary File
Mime Type: unknown/tmp
Group: Malware file
Last Updated: August 12, 2010
svhost.exe File name: svhost.exe
Size: 3.05 MB (3057152 bytes)
MD5: 26ee3cfeba083c8b60fea7c3a4c618ae
Detection count: 1
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: January 8, 2010

More files

Registry Modifications

The following newly produced Registry Values are:

Regexp file mask%SystemRoot%\System32\TDSS[RANDOM CHARACTERS].dat%SystemRoot%\System32\TDSS[RANDOM CHARACTERS].dll%TEMP%\TDSS[RANDOM CHARACTERS].tmp

4 Comments

  • jim says:

    cannot get into safe mode. cannot run regedit. removal of the tdss files does nothing because it comes right back. cannot turn on firewall. was on. cannot use system restore or manage system restore. solution does not work for me. pctools says it will remove but does not. cannot remove the hidden files.

  • Cazulp says:

    Thanks to SpyHunter I was able to identify that I had Backdoor.tdss. I did a search on TDSS and found 2 temp files and about 3 dlls. I deleted the temp files and started unregistering the DLLS. Magically McAfede was now able to update its Virus definitions and it cleaned up the rest. I then deleted all references to TDSS in the registry. So far all seems well.

  • Robert Hoschek says:

    I could remove the TDSS using Spambot Search & Destroy. The problem to solve was to make run Spybot (which is normally prevented by TDSS). I started my XP using an older valid restore point and Spybot came up. I removed all files.

  • Mike says:

    But what to do with newer versions?