Home Malware Programs Trojans Troj/Tepfer-Q

Troj/Tepfer-Q

Posted: April 18, 2013

Threat Metric

Threat Level: 9/10
Infected PCs: 30
First Seen: April 18, 2013
Last Seen: April 14, 2022
OS(es) Affected: Windows

Troj/Tepfer-Q is a Trojan that is a part of a spam malware attack related to the Boston Marathon bombing. Spam email messages state to include a link to video footage of Monday's terrorist activity in Boston, with subject lines such as '2 Explosions at Boston Marathon'. If the target recipient clicks on the link mistakenly, he/she is taken to a website which, while displaying the victim legitimate YouTube videos of the horrific incident, strives to corrupt the computer system with a Windows Trojan called Troj/Tepfer-Q. If installed on the compromised PC, Troj/Tepfer-Q makes modifications to the Windows Registry and installs the malicious files, which allow cybercrooks to gain remote access and control to the attacked computer. The file 'NPF.sys' is registered as a new service named 'NPF', with a display name of 'WinPcap Packet Driver (NPF)'.

Other subject lines used in the malware campaign involve:

Boston Explosion Caught on Video
Video of Explosion at the Boston Marathon 2013
Aftermath to explosion at Boston Marathon
It's no surprise to see that the links used in the malicious email can vary - no doubt in an attempt to avoid rudimentary email filtering but they all appear to be based in Ukraine and Latvia.

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:



[System]\wpcap.dll File name: [System]\wpcap.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
[System]\Packet.dll File name: [System]\Packet.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
[System]\drivers\npf.sys File name: [System]\drivers\npf.sys
File type: System file
Mime Type: unknown/sys
Group: Malware file
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