Worm/SdBot.acq - Worm

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Summary

Full description

Statistics

Virus:	Worm/SdBot.acq
Date discovered:	11/08/2005
Type:	Worm
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Low to medium
Damage Potential:	Low
Static file:	Yes
File size:	38.400 Bytes
MD5 checksum:	a8f7dd1bac56daf489c7973583a1b057
VDF version:	6.31.1.68

General Method of propagation:
   • Local network

Aliases:
   • Symantec: W32.IRCBot
   • Mcafee: W32/Sdbot.worm.gen.bj
   • Kaspersky: Backdoor.Win32.IRCBot.ev
   • TrendMicro: WORM_SDBOT.BYF
   • F-Secure: W32/Ranky.MD
   • VirusBuster: Worm.SdBot.BCI
   • Bitdefender: Trojan.Proxy.Ranky.EB

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Downloads files
   • Downloads a malicious file
   • Registry modification
   • Steals information
   • Third party control

Files The following file is created:

– A file that is for temporary use and it might be deleted afterwards:
• r.bat

Registry The following registry keys are added in order to run the processes after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "CalcScience"="cscientist.exe"

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "CalcScience"="cscientist.exe"

The following registry keys are added in order to load the service after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices]
   • "CalcScience"="cscientist.exe"

Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below.

It drops copies of itself to the following network shares:
   • C$\windows\system32\
   • C$\Documents and Settings\All Users\Documents\
   • C\
   • C$\shared\
   • IPC$\
   • C$\winnt\system32\
   • ADMIN$\system32\

It uses the following login information in order to gain access to the remote machine:

– The following list of usernames:
   • admin
   • administrador
   • administrateur
   • administrator

– The following list of passwords:
   • 123qwe123; zaqxsw; zaq123; motdepass; fuckyou; billgate; billgates;
      intranet; staff; teacher; student1; student; user1; turnip; freddy;
      internet; nokia; qweasdzxc; zxcvbnm; 123qaz; 123qwe; qwe123; qazwsx;
      qweasd; zxc123; pass1234; passwd

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

Server: **********.malresearch.org.net
Port: 1025
Channel: #sol
Nickname: I%five-digit random character string%

– Furthermore it has the ability to perform actions such as:
    • disconnect from IRC server
    • Download file
    • Execute file
    • Join IRC channel
    • Kill process
    • Leave IRC channel
    • Perform network scan
    • Start spreading routine
    • Terminate process
    • Updates itself

Stealing It tries to steal the following information:

– The following CD key:
• Battlefield 2

Miscellaneous Mutex:
It creates the following Mutex:
• gilettexe

File details Programming language:
The malware program was written in MS Visual C++.

Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with the following runtime packers:
• Morphine
• FSG 2

See a brief description here.

Description inserted by Razvan Olteanu on Mon, 15 Aug 2005 09:23 (GMT+1)
Description updated by Razvan Olteanu on Tue, 30 Aug 2005 08:38 (GMT+1)

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