Virus: Worm/Arduk.G Date discovered: 15/07/2005 Type: Worm In the wild: Yes Reported Infections: Low Distribution Potential: Low to medium Damage Potential: Low to medium Static file: Yes File size: 13.312 Bytes MD5 checksum: 383a48fe9d8e8d8ba3240756d686c696 VDF version: 6.25.0.18
General Method of propagation: • Email Aliases: • Symantec: W32.Adurk@mm • Mcafee: W32/Ardurk.gen@MM • Kaspersky: Email-Worm.Win32.Ardurk.g • TrendMicro: WORM_ADURK.A • Sophos: W32/Ardurk-G • VirusBuster: I-Worm.Ardurk.G Platforms / OS: • Windows 95 • Windows 98 • Windows 98 SE • Windows NT • Windows ME • Windows 2000 • Windows XP • Windows 2003 Side effects: • Drops malicious files • Uses its own Email engine • Registry modification • Third party control Right after execution the following information is displayed: Files It copies itself to the following location: • %SYSDIR% \%executed file% .exe It drops a copy of itself using a filename from a list: Using one of the following names: • %every *.htm file% .exe A section is added to a file. – To: %every *.htm file% .exe With the following contents: • <OBJECT type="application/x-oleobject"CLASSID="%generated CLSID% "></OBJECT><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> Registry The following registry key is added in order to run the process after reboot: – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] • "Namesd"="%executed file% .exe" The following registry keys are added in order to load the services after reboot: – [HKLM\SYSTEM\CurrentControlSet\Services\%executed file% .exe] • "Type"=dword:00000110 • "Start"=dword:00000002 • "ErrorControl"=dword:00000000 • "DisplayName"="%executed file% .exe" • "ObjectName"="LocalSystem" • "ImagePath"="%SYSDIR% \%executed file% .exe " – [HKLM\SYSTEM\CurrentControlSet\Services\%executed file% .exe\ Enum] • "0"="Root\\LEGACY_%executed file% .EXE\\0000" • "Count"=dword:00000001 • "NextInstance"=dword:00000001 – [HKLM\SYSTEM\CurrentControlSet\Services\%executed file% .exe\ Security] • Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\ 00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\ 00,00,02,00,60,00,04,00,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,\ 05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\ 20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\ 00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\ 00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00 The following registry keys are added: – HKLM\SYSTEM\CurrentControlSet\Enum\Root\ LEGACY_%executed file% .EXE] • "NextInstance"=dword:00000001 – HKLM\SYSTEM\CurrentControlSet\Enum\Root\ LEGACY_%executed file% .EXE\0000] • "Service"="%executed file% .exe" • "Legacy"=dword:00000001 • "ConfigFlags"=dword:00000000 • "Class"="LegacyDriver" • "ClassGUID"="{8ECC055D-047F-11D1-A537-0000F8753ED1}" • "DeviceDesc"="%executed file% .exe" – [HKLM\SYSTEM\CurrentControlSet\Enum\Root\ LEGACY_%executed file% .EXE\0000\Control] • "*NewlyCreated*"=dword:00000000 • "ActiveService"="%executed file% .exe" – HKCR\CLSID\{%generated CLSID% }\LocalServer32] • @="%malware execution directory% \\%executed file% .exe" – [HKCR\CLSID\{%generated CLSID% }] • @="%every *.htm file% .exe" – [HKCR\CLSID\{%generated CLSID% }\LocalServer32] • @="%malware execution directory% \\%every *.htm file% .exe" The following registry keys are changed: – [HKLM\SYSTEM\ControlSet001\Control\ServiceCurrent] Old value: • @=dword:0000000a New value: • @=dword:0000000d – [HKLM\SYSTEM\CurrentControlSet\Services\lanmanserver\Shares] Old value: • "C"=hex(7):43,00,53,00,43,00,46,00,6c,00,61,00,67,00,73,00,3d,00,30,00,00,00,\ 4d,00,61,00,78,00,55,00,73,00,65,00,73,00,3d,00,34,00,32,00,39,00,34,00,39,\ 00,36,00,37,00,32,00,39,00,35,00,00,00,50,00,61,00,74,00,68,00,3d,00,43,00,\ 3a,00,5c,00,00,00,50,00,65,00,72,00,6d,00,69,00,73,00,73,00,69,00,6f,00,6e,\ 00,73,00,3d,00,30,00,00,00,52,00,65,00,6d,00,61,00,72,00,6b,00,3d,00,00,00,\ 54,00,79,00,70,00,65,00,3d,00,30,00,00,00,00,00 New value: • "C"=hex(7):43,00,53,00,43,00,46,00,6c,00,61,00,67,00,73,00,3d,00,30,00,00,00,\ 4d,00,61,00,78,00,55,00,73,00,65,00,73,00,3d,00,34,00,32,00,39,00,34,00,39,\ 00,36,00,37,00,32,00,39,00,35,00,00,00,50,00,61,00,74,00,68,00,3d,00,43,00,\ 3a,00,5c,00,00,00,50,00,65,00,72,00,6d,00,69,00,73,00,73,00,69,00,6f,00,6e,\ 00,73,00,3d,00,30,00,00,00,52,00,65,00,6d,00,61,00,72,00,6b,00,3d,00,00,00,\ 54,00,79,00,70,00,65,00,3d,00,30,00,00,00,00,00 "d"=hex(7):43,00,53,00,43,00,46,00,6c,00,61,00,67,00,73,00,3d,00,30,00,00,00,\ 4d,00,61,00,78,00,55,00,73,00,65,00,73,00,3d,00,34,00,32,00,39,00,34,00,39,\ 00,36,00,37,00,32,00,39,00,35,00,00,00,50,00,61,00,74,00,68,00,3d,00,64,00,\ 3a,00,5c,00,00,00,50,00,65,00,72,00,6d,00,69,00,73,00,73,00,69,00,6f,00,6e,\ 00,73,00,3d,00,30,00,00,00,52,00,65,00,6d,00,61,00,72,00,6b,00,3d,00,64,00,\ 00,00,54,00,79,00,70,00,65,00,3d,00,30,00,00,00,00,00 "e"=hex(7):43,00,53,00,43,00,46,00,6c,00,61,00,67,00,73,00,3d,00,30,00,00,00,\ 4d,00,61,00,78,00,55,00,73,00,65,00,73,00,3d,00,34,00,32,00,39,00,34,00,39,\ 00,36,00,37,00,32,00,39,00,35,00,00,00,50,00,61,00,74,00,68,00,3d,00,65,00,\ 3a,00,5c,00,00,00,50,00,65,00,72,00,6d,00,69,00,73,00,73,00,69,00,6f,00,6e,\ 00,73,00,3d,00,30,00,00,00,52,00,65,00,6d,00,61,00,72,00,6b,00,3d,00,65,00,\ 00,00,54,00,79,00,70,00,65,00,3d,00,30,00,00,00,00,00 Email It contains an integrated SMTP engine in order to send emails. A direct connection with the destination server will be established. The characteristics are described in the following: From: The sender address is spoofed. To: – Email addresses found in specific files on the system. Subject: The following: • CARTOON %three-digit random character string% Body: – Contains HTML code. – Contains a link to other malware. The body of the email is the following: • CARTOON %three-digit random character string% The 1 Site for: Cartoons, Hentai & Anime HORNY LITTLE TOONS EXCLUSIVE HENTAI CONTENT EROTIC ANIME MOVIES NEVER SEEN BEFORE CARTOON SLUTS JAPANESE MANGA TOONS ENTER CARTOON %three-digit random character string% HERE!! To unsubscribe click here "http://**********.net/remove/remove.php" Attachment: The filename of the attachment is constructed out of the following: – It starts with one of the following: • CARTOON_ Continued by one of the following: • %three-digit random character string% The file extension is one of the following: • .exe Here are a few examples of how the filename of the attachment might look like: • CARTOON_222.exe • CARTOON_021.exe The email looks like the following: Mailing Search addresses: It searches the following file for email addresses: • HTM Miscellaneous Mutex: It creates the following Mutex: • _NextPart_%03d_%04X_%08.8lX.%08.8lX Network shares: The following network shares will be created: • C:\ • D:\
Description inserted by Catalin Jora on Wednesday, August 3, 2005 Description updated by Catalin Jora on Friday, August 19, 2005
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