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Virus:TR/Drop.Streab.A
Date discovered:05/07/2011
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Medium to high
Damage Potential:Medium
Static file:Yes
File size:139.264 Bytes
MD5 checksum:16F019DE3267A5A5B4D56407765921FB
VDF version:7.11.10.217 - Tuesday, July 5, 2011
IVDF version:7.11.10.217 - Tuesday, July 5, 2011

 General Methods of propagation:
   • Autorun feature
   • Messenger


Aliases:
   •  Symantec: W32.IRCBot.NG
   •  Kaspersky: Backdoor.Win32.Ruskill.yk
   •  TrendMicro: BKDR_IRCBOT.YL


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows 7


Side effects:
   • Drops files
   • Registry modification

 Files It copies itself to the following location:
   • %APPDATA%\%random character string%.exe



It deletes the initially executed copy of itself.




It tries to download some files:

– The location is the following:
   • **********.184.237.188/43j.exe
At the time of writing this file was not online for further investigation.

– The location is the following:
   • **********.184.237.220/dqj.exe
At the time of writing this file was not online for further investigation.

 Registry One of the following values is added in order to run the process after reboot:

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "%random character string%"="%APPDATA%\%random character string%.exe"

 Messenger It is spreading via Messenger. The characteristics are described below:

– Windows Live Messenger

 IRC To deliver system information and to provide remote control it connects to the following IRC Servers:

Server: **********.themarketbaby.com
Port: 3800
Nickname: %random character string%

Server: **********.marketallone.com
Port: 3800
Nickname: %random character string%

Server: **********.lighthousez11.com
Port: 3800
Nickname: %random character string%



– This malware has the ability to collect and send information such as:
    • Username
    • Information about the Windows operating system


– Furthermore it has the ability to perform actions such as:
    • connect to IRC server
    • disconnect from IRC server
    • Join IRC channel
    • Leave IRC channel
    • Start spreading routine

 Backdoor The following:
   • **********pnipponp.r7m.us/cgi-bin/p.cgi


 Miscellaneous Accesses internet resources:
   • api.wipmania.com

Description inserted by Andrei Ilie on Thursday, September 22, 2011
Description updated by Andrei Ilie on Friday, September 23, 2011

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