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Published Jan 20, 2015
|
Updated Sep 15, 2017
Backdoor:Win32/Venik.F
What to do now
Use the following free Microsoft software to detect and remove this threat:
You should also run a full scan. A full scan might find hidden malware.
Get more help
You can also see our advanced troubleshooting page for more help.
If you’re using Windows XP , see our Windows XP end of support page .
Technical information
Threat behavior
Installation
This threat can create files on your PC, including:
Payload
Allows backdoor access and control
This threat can give a malicious hacker access and control of your PC. They can then perform a number of different actions, including:
Deleting files
Downloading and running files
Logging your keystrokes or stealing your sensitive data
Modifying your system settings
Running or stopping applications
Spreading malware to other PCs
Uploading files
We've also seen this threat try to shut down infected PCs.
Connects to a remote host
We have seen this threat connect to a remote host, including:
wfs2015.f3322.net using port 1083
Malware can connect to a remote host to do any of the following:
Check for an Internet connection
Download and run files (including updates or other malware)
Report a new infection to its author
Receive configuration or other data
Receive instructions from a malicious hacker
Search for your PC location
Upload information taken from your PC
Validate a digital certificate
Additional information
Creates a mutex
This threat can create a mutex on your PC. For example:
wfs2015.f3322.net:1083:SRDSLr
It might use this mutex as an infection marker to prevent more than one copy of the threat running on your PC.
This malware description was published using automated analysis of file SHA1 1b33a6f6af26a4cd40e4cfd165b1b2335cc277ee .
Prevention
Symptoms
The following can indicate that you have this threat on your PC:
You see registry modifications such as:
In subkey: HKLM\system\currentcontrolset\services\srdslr\parameters Sets value: "ServiceDll " With data: "%ProgramFiles%\netmeeting\168718.dll "
In subkey: HKLM\system\currentcontrolset\services\srdslr Sets value: "Description " With data: "¹üàí»ùóú×é¼þ¶ôïóä£ðíµäºëðä·þîñ¡£ "
The presence of a mutex such as:
wfs2015.f3322.net:1083:SRDSLr
Debug Version = 1.0.0.0;