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Trojan:Win32/CoinMiner.AB

First posted on 06 August 2014.
Source: Microsoft

Aliases :

There are no other names known for Trojan:Win32/CoinMiner.AB.

Explanation :

Threat behavior

Installation

Trojan:Win32/CoinMiner.AB copies itself to c:\documents and settings\administrator\avm20\avm20.exe. The malware creates files on your PC using variable file names, for example:

• c:\documents and settings\administrator\local settings\temp\84cawdm2.bat
• c:\documents and settings\administrator\local settings\temp\8gvh93rb.bat

The malware creates the following files on your PC:

• \device\null
• c:\documents and settings\administrator\local settings\application data\qb057df1.71\libcurl.dll
• c:\documents and settings\administrator\local settings\application data\qb057df1.71\minerd.exe
• c:\documents and settings\administrator\local settings\application data\qb057df1.71\pthreadgc2.dll
• c:\documents and settings\administrator\local settings\application data\qb057df1.71\zlib1.dll
• c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\libcurl.dll
• c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\minerd.exe
• c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\pthreadgc2.dll
• c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\zlib1.dll

Payload

Contacts remote host
Trojan:Win32/CoinMiner.AB might contact a remote host at mine.pool-x.eu using port 9000. Commonly, malware does this to:

• Report a new infection to its author
• Receive configuration or other data
• Download and run files, including updates or other malware
• Receive instructions from a remote hacker
• Upload data taken from your PC

This malware description was produced and published using automated analysis of file SHA1 254eb13fe47b92a094b5ea982170f4aafe37f6e6.Symptoms

System changes

The following could indicate that you have this threat on your PC:

• You have these files:
  
  \device\null
  c:\documents and settings\administrator\avm20\avm20.exe
  c:\documents and settings\administrator\local settings\application data\qb057df1.71\libcurl.dll
  c:\documents and settings\administrator\local settings\application data\qb057df1.71\minerd.exe
  c:\documents and settings\administrator\local settings\application data\qb057df1.71\pthreadgc2.dll
  c:\documents and settings\administrator\local settings\application data\qb057df1.71\zlib1.dll
  c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\libcurl.dll
  c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\minerd.exe
  c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\pthreadgc2.dll
  c:\documents and settings\administrator\local settings\application data\qb05b2bd.ac\zlib1.dll
  c:\documents and settings\administrator\local settings\temp\84cawdm2.bat
  c:\documents and settings\administrator\local settings\temp\8gvh93rb.bat

Last update 06 August 2014

 

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