Besoin d’aide ? Fais appel à la communauté ou embauche un spécialiste.
Aller à Avira Answers
Date discovered:13/12/2005
In the wild:Yes
Reported Infections:Low
Distribution Potential:Medium
Damage Potential:Medium
Static file:Yes
File size:120.320 Bytes
MD5 checksum:f75688832446da31da4e043a466f6ad5
VDF version:

 General Method of propagation:
   • Local network

   •  Symantec: W32.Spybot.Worm
   •  Kaspersky: Backdoor.Win32.SdBot.aid
   •  TrendMicro: WORM_SDBOT.DGF
   •  F-Secure: Backdoor.Win32.SdBot.aid
   •  Sophos: W32/Sdbot-AFU
   •  Panda: W32/Gaobot.LUL.worm
   •  VirusBuster: Worm.SdBot.BPG
   •  Bitdefender: Backdoor.SDBot.3D536D1F

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

Side effects:
   • Registry modification
   • Makes use of software vulnerability
   • Third party control

 Files It copies itself to the following locations:
   • %SYSDIR%\compaq.exe
   • C:\funny pic.scr
   • C:\photo album.scr
   • C:\eminem vs 2pac.scr

It deletes the initially executed copy of itself.

 Registry The following registry keys are continuously in an infinite loop added in order to run the processes after reboot.

–  HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   • "Compaq Service Drivers"="compaq.exe"

–  HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
   • "Compaq Service Drivers"="compaq.exe"

–  HKCU\Software\Microsoft\Windows\CurrentVersion\Run
   • "Compaq Service Drivers"="compaq.exe"

–  HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
   • "Compaq Service Drivers"="compaq.exe"

The following registry keys are added:

– HKCR\.key
   • @="regfile"

– HKLM\SOFTWARE\Microsoft\Ole
   • "Compaq Service Drivers"="compaq.exe"

– HKLM\SYSTEM\CurrentControlSet\Control\Lsa
   • "Compaq Service Drivers"="compaq.exe"

– HKCU\Software\Microsoft\OLE
   • "Compaq Service Drivers"="compaq.exe"

– HKCU\SYSTEM\CurrentControlSet\Control\Lsa
   • "Compaq Service Drivers"="compaq.exe"

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

It makes use of the following Exploit:
– MS04-007 (ASN.1 Vulnerability)

Infection process:
Creates an FTP script on the compromised machine in order to download the malware to the remote location.

Remote execution:
–It attempts to schedule a remote execution of the malware, on the newly infected machine. Therefore it uses the NetScheduleJobAdd function.

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

Server: seduce.dea**********
Port: 6667
Channel: #.sdbot.#
Nickname: [F]USA|%number%
Password: priv8

– This malware has the ability to collect and send information such as:
    • CPU speed
    • Current user
    • Details about drivers
    • Free disk space
    • Free memory
    • Information about the network
    • Information about running processes
    • Size of memory
    • Username
    • Information about the Windows operating system

– Furthermore it has the ability to perform actions such as:
    • Launch DDoS SYN flood
    • Disable network shares
    • Download file
    • Enable network shares
    • Execute file
    • Join IRC channel
    • Kill process
    • Leave IRC channel
    • Perform network scan
    • Terminate process
    • Updates itself

 File details Programming language:
The malware program was written in MS Visual C++.
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description insérée par Irina Boldea le lundi 17 avril 2006
Description mise à jour par Irina Boldea le lundi 17 avril 2006

Retour . . . .