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Virus:Worm/Rbot.78808
Date discovered:21/11/2005
Type:Worm
In the wild:Yes
Reported Infections:Low
Distribution Potential:Medium
Damage Potential:Medium
Static file:Yes
File size:78.808 Bytes
MD5 checksum:b68e656d8281c44c1c04f3a1c8ad3cf4
VDF version:6.32.00.202

 General Method of propagation:
   • Local network


Aliases:
   •  Kaspersky: Backdoor.Win32.Rbot.gen
   •  TrendMicro: WORM_RBOT.DAQ
   •  F-Secure: Backdoor.Win32.Rbot.gen
   •  Sophos: W32/Rbot-Fam
   •  Panda: W32/Gaobot.LJN.worm
   •  VirusBuster: Worm.RBot.DAY
   •  Eset: Win32/Rbot
   •  Bitdefender: Backdoor.Rbot.CPQ


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


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

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



It deletes the initially executed copy of itself.

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

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   • "MicroSft Personal Firewall"="svchsot.exe"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
   • "MicroSft Personal Firewall"="svchsot.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
   • "MicroSft Personal Firewall"="svchsot.exe"



The following registry keys are changed:

HKLM\SOFTWARE\Microsoft\Ole
   Old value:
   • "EnableDCOM"=%user defined settings%
   New value:
   • "EnableDCOM"="N"

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
   Old value:
   • "restrictanonymous"=%user defined settings%
   New value:
   • "restrictanonymous"=dword:00000001

 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:
   • IPC$
   • C$
   • C$\windows\system32
   • c$\winnt\system32
   • ADMIN$\system32\
   • ADMIN$


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

Cached usernames and passwords.

A list of usernames and passwords:
   • intranet; lan; main; winpass; blank; office; control; nokia; siemens;
      compaq; dell; cisco; ibm; orainstall; sqlpassoainstall; sql; db1234;
      db1; databasepassword; data; databasepass; dbpassword; dbpass; access;
      domainpassword; domainpass; domain; hello; hell; god; sex; slut;
      bitch; fuck; exchange; backup; technical; loginpass; login; mary;
      katie; kate; george; eric; chris; ian; neil; lee; brian; susan; sue;
      sam; luke; peter; john; mike; bill; fred; joe; jen; bob; qwe; zxc;
      asd; qaz; win2000; winnt; winxp; win2k; win98; windows; oeminstall;
      oemuser; oem; user; homeuser; home; accounting; accounts; internet;
      www; web; outlook; mail; qwerty; null; server; system; changeme;
      linux; unix; demo; none; test; 2004; 2003; 2002; 2001; 2000;
      1234567890; 123456789; 12345678; 1234567; 123456; 12345; 1234; 123;
      007; pwd; pass; pass1234; passwd; password; password1; adm; db2;
      oracle; dba; database; default; guest; wwwadmin; teacher; student;
      owner; computer; staff; admins; administrat; administrateur;
      administrador; administrator



Exploit:
It makes use of the following Exploits:
– MS03-026 (Buffer Overrun in RPC Interface)
– MS03-039 (Buffer Overrun in RPCSS Service)
– MS04-011 (LSASS Vulnerability)


IP address generation:
It creates random IP addresses while it keeps the first two octets from its own address. Afterwards it tries to establish a connection with the created addresses.


Infection process:
Creates a TFTP or 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: unixguy.hack**********
Port: 8877
Server password: guy
Channel: #LLiFee#
Nickname: USA| %six-digit random character string%
Password: guy



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


 Furthermore it has the ability to perform actions such as:
     Launch DDoS ICMP flood
     Launch DDoS SYN flood
    • Launch DDoS TCP flood
     Launch DDoS UDP flood
    • Disable DCOM
    • Disable network shares
    • Download file
    • Enable DCOM
    • Enable network shares
    • Execute file
    • Kill process
    • Open remote shell
    • Perform DDoS attack
     Perform network scan
    • Perform port redirection
     Register a service
    • Restart system
    • Send emails
     Start keylog
     Start spreading routine
    • Terminate malware
    • Terminate process
     Updates itself
    • Upload file
     Visit a website

 Stealing It tries to steal the following information:
– Windows Product ID

The following CD keys:
   • Battlefield 1942; Battlefield 1942 (Road To Rome); Battlefield 1942
      (Secret Weapons of WWII); Battlefield Vietnam; Black and White;
      Command & Conquer Generals; Command and Conquer: Generals (Zero Hour);
      Command and Conquer: Red Alert 2; Command and Conquer: Tiberian Sun;
      Counter-Strike (Retail); Chrome; FIFA 2002; FIFA 2003; Freedom Force;
      Global Operations; Gunman Chronicles; Half-Life; Hidden & Dangerous 2;
      IGI 2: Covert Strike; Industry Giant 2; James Bond 007: Nightfire;
      Legends of Might and Magic; Medal of Honor: Allied Assault; Medal of
      Honor: Allied Assault: Breakthrough; Medal of Honor: Allied Assault:
      Spearhead; Nascar Racing 2002; Nascar Racing 2003; Need For Speed Hot
      Pursuit 2; Need For Speed: Underground; Neverwinter Nights;
      Neverwinter Nights (Hordes of the Underdark); Neverwinter Nights
      (Shadows of Undrentide); NHL 2003; NHL 2002; NOX; Rainbow Six III
      RavenShield; Shogun: Total War: Warlord Edition; Soldier of Fortune II
      - Double Helix; Soldiers Of Anarchy; The Gladiators; Unreal Tournament
      2003; Unreal Tournament 2004

It uses a network sniffer that checks for the following strings:
   • :.login; :,login; :!login; :@login; :$login; :%login; :^login;
      :*login; :-login; :+login; :/login; :\login; :=login; :?login;
      :'login; :`login; :~login; : login; :.auth; :,auth; :!auth; :@auth;
      :$auth; :%auth; :^auth; :&auth; :*auth; :-auth; :+auth; :/auth;
      :\auth; :=auth; :?auth; :'auth; :`auth; :~auth; : auth; :.id; :,id;
      :!id; :@id; :$id; :%id; :^id; :&id; :*id; :-id; :+id; :/id; :\id;
      :=id; :?id; :'id; :`id; :~id; : id; :.hashin; :!hashin; :$hashin;
      :%hashin; :.secure; :!secure; :.l; :!l; :$l; :%l; :.x; :!x; :$x; :%x;
      :.syn; :!syn; :$syn; :%syn

A logging routine is started after the following website is visited, which contains one of the following substrings in the URL:
   • paypal.com
   • PAYPAL.com

 It captures:
     Keystrokes
     Login information

 Miscellaneous Mutex:
It creates the following Mutex:
   • BoT

 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.

Descrizione inserita da Irina Boldea su giovedì 6 aprile 2006
Descrizione aggiornata da Irina Boldea su mercoledì 19 aprile 2006

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