Virus: Worm/Minusia.A Date discovered: 22/03/2006 Type: Worm In the wild: Yes Reported Infections: Low Distribution Potential: Medium to high Damage Potential: Low Static file: No VDF version: 6.34.00.83
General Methods of propagation: • Email • Local network Aliases: • Symantec: W32.Renama.A@mm • Kaspersky: Email-Worm.Win32.Minusi.a • Sophos: W32/Minusia-A • Bitdefender: Win32.Minusia.A Platforms / OS: • Windows NT • Windows ME • Windows 2000 • Windows XP • Windows 2003 Side effects: • Drops files • Registry modification • Makes use of software vulnerability Right after execution it runs a windows application which will display the following window: If in victim machine, in %WINDIR% \ exists a file with the following name, muhammad_is_my_prophet.txt, the worm would not infect the machine. Files It copies itself to the following locations: • %SYSDIR% \svchost.exe • %WINDIR% \safemode.exe • %SYSDIR% \ERSvc.exe • %WINDIR% \mmsg\mcAfee.Update.exe.exe • %WINDIR% \Config\Easy.Windows.Monitoring.exe.exe • %WINDIR% \Config\system.update.exe.exe • %WINDIR% \mmsg\mmsg\mmsg.exe.exe • %system drive root% \listname_of_terrorist.exe The following files are created: – %WINDIR% \system_log.txt This is a non malicious text file with the following content: • MUHAMMAD ADALAH MANUSIA .............!!!!!! MUHAMMAD BUKAN MALAIKAT, DEWA, ATAU BAHKAN TUHAN...!!!!! TAPI DIA ADALAH PANUTAN SETIAP UMMAT MANUSIA, KARENA DIA ADALAH NABIULLAH..!!! KAMI MENGHORMATI MUHAMMAD SEBAGAI NABI DAN PEMIMPIN KARENA TINDAKANNYA YANG 99% BENAR BUKAN SEBAGAI DEWA, MALAIKAT ATAU BAHKAN TUHAN....!!!! SEBAGAIMANA KAMI MENGHORMATI NABI ISA DAN NABI-NABI LAIN KENAPA...???? KARENA MEREKA ADALAH MANUSIA JUGA JADI MOHON JANGAN MENCARI-CARI KESALAHAN DAN KENISTAANNYA YANG MUHAMMAD BERISTRI BANYAKLAH, MENGEKANG WANITA-LAH DAN LAIN-LAIN PAKAILAH LOGIKA, NISCAYA AKAN DAPAT KEBENARANNYA ....................................................... JADI, MOHON JANGAN HINA NABI-NABI KAMI...!!! KARENA MAREKA ADALAH NABI-NABI KALIAN JUGA..!!!! _________________________________________________________________________________________ AKU AKAN BERHENTI JIKA ANDA MENYATAKAN SIAPA NABI KALIAN..... AKU AKAN BERHENTI JIKA ANDA MENYATAKAN SIAPA NABI KALIAN..... AKU AKAN BERHENTI JIKA ANDA MENYATAKAN SIAPA NABI KALIAN..... IF YOU DON'T UNDERSTAND, PLEASE TRANSLATE IN YOU LANGUAGE – %WINDIR% \Registry1.dll This is a non malicious text file that contains information about the program itself. – %WINDIR% \Registry1.dll This is a non malicious text file that contains information about the program itself. Registry The following registry key is continuously in an infinite loop added in order to run the process after reboot. – [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] • "mcAfee.Instan.Update"="%WINDIR% \mmsg\mcAfee.Update.exe.exe" • "KasperskiLab"="%WINDIR% \Config\Easy.Windows.Monitoring.exe.exe" • "MsnMsgr"="%PROGRAM FILES% \MSN Messenger\MsnMsgr.Exe .exe • "MSMSGS"="%PROGRAM FILES% \Messenger\msmsgs.exe .exe" – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] • "HotKeysCmds"="%WINDIR% \Config.system.update.exe.exe" The following registry keys are added in order to load the services after reboot: – [HKLM\SYSTEM\ControlSet001\Services\srservice] • "Type"=dword:00000020 "Start"=dword:00000002 "ErrorControl"=dword:00000001 "ImagePath"=%SYSDIR% \svchost.exe "DisplayName"="System Restore Service" "DependOnService"=RpcSs "DependOnGroup"=%hex values% "ObjectName"="LocalSystem" "Description"="Performs system restore functions. To stop service, turn off System Restore from the System Restore tab in My Computer->Properties" – [HKLM\SYSTEM\ControlSet001\Services\srservice\Parameters] • "ServiceDll"=%SYSDIR% \srsvc.dll – [HKLM\SYSTEM\ControlSet001\Services\srservice\Security] • "Security"=%hex values% – [HKLM\SYSTEM\ControlSet001\Services\srservice\Enum] • "0"="Root\\LEGACY_SRSERVICE\\0000" "Count"=dword:00000001 "NextInstance"=dword:00000001 – [HKLM\SYSTEM\ControlSet001\Services\ERSvc] • "DependOnService"=RpcSs "Description"="Allows error reporting for services and applictions running in non-standard environments." "DisplayName"="Error Reporting Service" "ErrorControl"=dword:00000000 "ImagePath"=%SYSDIR% \ERSvc.exe "ObjectName"="LocalSystem" "Start"=dword:00000002 "Type"=dword:00000020 – [HKLM\SYSTEM\ControlSet001\Services\ERSvc\Parameters] • %SystemRoot%\System32\ersvc.dll – [HKLM\SYSTEM\ControlSet001\Services\ERSvc\Security] • "Security"=%hex values% – [HKLM\SYSTEM\ControlSet001\Services\ERSvc\Enum] • "0"="Root\\LEGACY_ERSVC\\0000" "Count"=dword:00000001 "NextInstance"=dword:00000001 The following registry key is added: – [HKCU\Identities\%CLSID% \Software\Microsoft\Outlook Express\ 5.0\Mail] • "Warn on Mapi Send"=dword:00000000 The following registry keys are changed: – [HKCU\Software\Policies\Microsoft\Windows\System] New value: • "DisableCMD"=dword:00000001 Disable Regedit and Task Manager: – [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System] New value: • "DisableRegistryTools"=dword:00000001 • "DisableTaskMgr"=dword:00000001 Email It uses the Messaging Application Programming Interface (MAPI) in order to send emails. The characteristics are further described: Subject: One of the following: • %random character string% ,your name is listed in terrorism organisation..!!! • %random character string% ,this file from me,%random character string% , • %random character string% ,Namamu termasuk dalam daftar terrorist..!! Body: – In some cases it may contain random characters. The body of the email is one of the following: • This attachment contain listname of terrorist..!!! hope you can be carrefull if you find one of them..!!!! or you can reply this email to me after you read the attachment thank's...!!! • jika anda nggak percaya atau kurang yakin, coba baca list attachment ini..!!! ini sangat urgent..!!!! saya harap dengan begini kita nggak ada salah paham thank's...!!! • if you are not sure, please read attachment bellow, and please reply to me..!!! this message is very urgent..!!!! hope we don't have miss understanding thank's...!!! Attachment: The filename of the attachment is one of the following: • %random character string% .zip • %random character string% .exe • listname_of_terrorist.exe The attachment is a copy of the malware itself. The attachment is an archive containing a copy of the malware itself. Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below. 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. Process termination List of processes that are terminated: • cmd.exe; mmc.exe; msconfig.exe; MIRC.EXE; MIRC.exe; mirc.exe; EXCEL.EXE; EXCEL.exe; excel.exe; WINWORD.EXE; WINWORD.exe; winword.exe File details Compilation date: Date: 28/02/2006 Time: 13:51:45
Description inserted by Andrei Ivanes on Wednesday, March 22, 2006 Description updated by Andrei Ivanes on Friday, September 21, 2007
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