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TrojanDownloader:Win32/Recslurp.D

First posted on 01 July 2014.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:Win32/Recslurp.D.

Explanation :

Threat behavior

Installation

TrojanDownloader:Win32/Recslurp.D creates the following files on your PC:

• \rundll32.exe
• c:\documents and settings\administrator\application data\csrss.exe

Payload

Stops processes

TrojanDownloader:Win32/Recslurp.D can stop the following processes:

• svchost.exe

Changes system security settings

The malware adds itself to the list of applications that can access the Internet without being stopped by your firewall. It does this by making the following registry modification:

Adds value: "Client Server Runtime Process"
With data: "c:\documents and settings\administrator\application data\csrss.exe:*:enabled:client server runtime process"
To subkey: HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List Contacts remote host

The malware might contact a remote host at 46.165.240.141 using port 40002. 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 2d3a65cb8349a4c324532967799e7456f890238a.Symptoms

System changes

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

• You have these files:
  
  \rundll32.exe
  c:\documents and settings\administrator\application data\csrss.exe

• You see these entries or keys in your registry:
  
  Sets value: "Client Server Runtime Process"
  With data: "c:\documents and settings\administrator\application data\csrss.exe:*:enabled:client server runtime process"
  In subkey: HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List

Last update 01 July 2014

 

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