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TrojanDownloader:Win32/Quopen.A

First posted on 06 March 2014.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:Win32/Quopen.A.

Explanation :

Threat behavior TrojanDownloader:Win32/Quopen.A is a trojan that silently downloads and installs other programs without consent. This could include the installation of additional malware or malware components to an affected computer.

Installation

TrojanDownloader:Win32/Quopen.A creates the following files on your PC:

• c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\nsisdl.dll
• c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\qv.ini
• c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\qv.ini.log
• c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\system.dll

Payload

Contacts remote host
TrojanDownloader:Win32/Quopen.A might contact a remote host at 3ed.ddxm.org using port 80. 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 c7d7d9061c8dd710d91e92dc2cdceeaf111cf7fa.Symptoms

System changes

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

• You have these files:
  
  

c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\nsisdl.dll
c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\qv.ini
c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\qv.ini.log
c:\documents and settings\administrator\local settings\temp\nsa1c.tmp\system.dll

Last update 06 March 2014

 

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