Worm/Rbot.1332224 - Worm

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Full description

Virus:	Worm/Rbot.1332224
Date discovered:	10/10/2006
Type:	Worm
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Medium
Damage Potential:	Medium
Static file:	Yes
File size:	1.332.224 Bytes
MD5 checksum:	7b7c635984e80774205c83c9222cb2dd
VDF version:	6.36.00.87
IVDF version:	6.36.00.103

General Method of propagation:
   • Local network
   • Mapped network drives

Aliases:
   • Mcafee: W32/Sdbot.worm.gen.ca
   • Kaspersky: Backdoor.Win32.SdBot.att
   • TrendMicro: WORM_SDBOT.AOF
   • Sophos: W32/Sdbot-CSB
   • VirusBuster: virus Worm.SdBot.EGF
   • Bitdefender: Backdoor.Rbot.FHS

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
   • Steals information
   • Third party control

Files It copies itself to the following location:
• %SYSDIR%\winit.exe

It deletes the initially executed copy of itself.

Registry The following registry key is added in order to run the process after reboot:

– HKLM\Software\Microsoft\Windows\CurrentVersion\Run
   • "Microsoft Updates"="winit.exe"

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

– HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
   • "Microsoft Updates"="winit.exe"

The following registry key is added:

– [HKCU\Software\Microsoft\OLE
   • "Microsoft Updates"="winit.exe"

The following registry keys are changed:

– HKLM\SOFTWARE\Microsoft\Ole
   Old value:
   • "EnableDCOM"="Y"
   New value:
   • "EnableDCOM"="N"

– HKLM\SYSTEM\CurrentControlSet\Control\Lsa
   Old value:
   • "restrictanonymous"=0
   New value:
   • "restrictanonymous"=1

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:
   • %s\ipc$
   • IPC$
   • %c$
   • %d$
   • c$\windows\system32
   • c$\winnt\system32
   • ADMIN$\system32
   • ADMIN$

Exploit:
It makes use of the following Exploits:
– MS01-059 (Unchecked Buffer in Universal Plug and Play)
– MS02-018 (Patch for Internet Information Service)
– MS02-061 (Elevation of Privilege in SQL Server Web)
– MS03-007 (Unchecked Buffer in Windows Component)
– MS03-026 (Buffer Overrun in RPC Interface)
– MS03-039 (Buffer Overrun in RPCSS Service)
– MS03-049 (Buffer Overrun in the Workstation Service)
– MS04-007 (ASN.1 Vulnerability)
– MS04-011 (LSASS Vulnerability)
– VX05-006 (Remote Heap Overflow when using the VERITAS Backup Exec Admin Plus Pack Option)
– Bagle backdoor (port 2745)
– Kuang backdoor (port 17300)
– NetDevil backdoor (port 903)
– Optix backdoor (port 3140)
– SubSeven backdoor (port 27347)
– DameWare remote administration (port 6129)

Infection process:
Creates a TFTP script on the compromised machine in order to download the malware to the remote location.
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: irc.wolfpac.org
Port: 6667
Channel: #skull
Nickname: USA%six-digit random character string%
Password: getlost

– This malware has the ability to collect and send information such as:
    • Cached passwords
    • Capture screen
    • Capture shot from webcam
    • CPU speed
    • Current user
    • Free disk space
    • Free memory
    • Malware uptime
    • Information about the network
    • Information about running processes
    • Size of memory
    • Information about the Windows operating system

– Furthermore it has the ability to perform actions such as:
    • connect to IRC server
    • Launch DDoS ICMP flood
    • Launch DDoS SYN flood
    • Launch DDoS TCP flood
    • Launch DDoS UDP flood
    • Disable DCOM
    • Disable network shares
    • disconnect from IRC server
    • Download file
    • Enable DCOM
    • Enable network shares
    • Execute file
    • Join IRC channel
    • Kill process
    • Leave IRC channel
    • Open remote shell
    • Perform DDoS attack
    • Perform network scan
    • Perform port redirection
    • Restart system
    • Send emails
    • Start keylog
    • Updates itself
    • Upload file
    • Visit a website

Stealing It tries to steal the following information:

– The following CD keys:
   • Battlefield1942; Battlefield1942(RoadToRome);
      Battlefield1942(SecretWeaponsofWWII); BattlefieldVietnam;
      BlackandWhite; Command&ConquerGenerals;
      CommandandConquer:Generals(ZeroHour); CommandandConquer:RedAlert2;
      CommandandConquer:; Counter-Strike(Retail); Chrome; FIFA2002;
      FIFA2003; FreedomForce; GlobalOperations; GunmanChronicles; Half-Life;
      Hidden&Dangerous2; IGI2:CovertStrike; IndustryGiant2;
      JamesBond007:Nightfire; LegendsofMightandMagic;
      MedalofHonor:AlliedAssault; MedalofHonor:AlliedAssault:Breakthrough;
      MedalofHonor:AlliedAssault:Spearhead; NascarRacing2002;
      NascarRacing2003; NeedForSpeedHotPursuit2; NeedForSpeed:Underground;
      NeverwinterNights; NeverwinterNights(HordesoftheUnderdark);
      NeverwinterNights(ShadowsofUndrentide)NeverwinterNights(ShadowsofUndrentide);
      NHL2003; NHL2002; NOX; RainbowSixIIIRavenShield;
      Shogun:TotalWar:WarlordEdition; SoldierofFortuneII-DoubleHelix;
      SoldiersOfAnarchy; TheGladiators; UnrealTournament2003;
      UnrealTournament2004

– A logging routine is started after keystrokes are typed that match the following string:
   • paypal

– It captures:
    • Keystrokes

– A logging routine is started after a website is visited:
   • paypal.com

– It captures:
    • Keystrokes

Miscellaneous Mutex:
It creates the following Mutex:
   • a3c

Anti debugging
It checks if one of the following files are present:
   • \\.\SICE
   • \\.\NTICE

If it was successful it displays the following and terminates immediately:

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 a runtime packer.

See a brief description here.

Inserted by Bogdan Iliuta on Fri, 10 Nov 2006 16:07 (GMT+1)
Updated by Bogdan Iliuta on Fri, 17 Nov 2006 15:36 (GMT+1)

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Worm/Rbot.1332224 - Worm

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