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TrojanDownloader:Win32/Derkef.A

First posted on 11 June 2014.
Source: Microsoft

Aliases :

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

Explanation :

Threat behavior

Installation

TrojanDownloader:Win32/Derkef.A copies itself to %windir%\def.exe. The malware changes the following registry entries so that it runs each time you start your PC:

In subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Sets value: "winnet32"
With data: "c:\windows\def.exe"

Payload

Contacts remote host
TrojanDownloader:Win32/Derkef.A might contact a remote host at extra-cam.netne.net 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 bd837201b6c87bd04120e4de7fe1ebfb46a31ed4.Symptoms

System changes

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

• You have these files:
  
  %windir%\def.exe

• You see these entries or keys in your registry:
  
  Sets value: "winnet32"
  With data: "c:\windows\def.exe"
  In subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Last update 11 June 2014

 

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