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Backdoor:Win32/Temratanam.A


First posted on 16 April 2016.
Source: Microsoft

Aliases :

There are no other names known for Backdoor:Win32/Temratanam.A.

Explanation :

Installation
This threat can create files on your PC, including:

  • %TEMP%\datapauth.exe
  • %TEMP%\svnhost.exe
  • %TEMP%\teamviewer_resource_en.dll
  • %TEMP%\winmm.dll


The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.

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, such as:
  • 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


Connects to a remote host

We have seen this threat connect to a remote host, including:
  • master11.teamviewer.com using port 53
  • master14.teamviewer.com using port 53
  • master16.teamviewer.com using port 80
  • master13.teamviewer.com using port 53
  • master15.teamviewer.com using port 53
  • master10.teamviewer.com using port 53
  • master12.teamviewer.com using port 53
  • master9.teamviewer.com using port 53
  • master6.teamviewer.com using port 53
  • master8.teamviewer.com using port 53
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 one or more mutexes on your PC. For example:
  • {C15730E2-145C-4c5e-B005-3BC753F42475}-once-flagECHPFIAAMKMAAAAA
  • DynGateInstanceMutex_tvratfree


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 a8e350234b68bdecc3cbe127d4855cd3b436fa53.

Last update 16 April 2016

 

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