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[Keefe]

W32/SirCam@MM

Virus Characteristics:
This mass-mailing virus attempts to send itself and local documents to all users found in the Windows Address Book and email addresses found in temporary Internet cached files (web browser cache).

It may be received in an email message containing the following information:

Subject: [filename (random)]
Body: Hi! How are you?

I send you this file in order to have your advice
or I hope you can help me with this file that I send
or I hope you like the file that I sendo you
or This is the file with the information that you ask for

See you later. Thanks

--- the same message may be received in Spanish ---

Hola como estas ?

Te mando este archivo para que me des tu punto de vista
or Espero me puedas ayudar con el archivo que te mando
or Espero te guste este archivo que te mando
or Este es el archivo con la información que me pediste


Nos vemos pronto, gracias.

--- end message ---

Attached will be a document with a double extension (the filename varies). The first extension will be the file type which was prepended by the virus. When run, the document will be saved to the C:\RECYCLED folder and then opened while the virus copies itself to C:\RECYCLED\SirC32.exe folder to conceal its presence and creates the following registry key value to load itself whenever .EXE files are executed:

HKCR\exefile\shell\open\command
\Default="C:\recycled\SirC32.exe" "%1" %*

It also copies itself to the WINDOWS SYSTEM directory as SCam32.exe and creates the following registry key value to load itself automatically:

HKLM\Software\Microsoft\Windows\CurrentVersion\
RunServices\Driver32=C:\WINDOWS\SYSTEM\SCam32.exe

A list of .GIF, .JPG, .JPEG, .MPEG, .MOV, .MPG, .PDF, .PNG, .PS, and .ZIP files in the MY DOCUMENTS folder is saved to the file SCD.DLL (the 2nd character of the name appears to be random) in the SYSTEM directory. Email addresses are gathered from the Windows Address Book and temporary Internet cached pages and saved to the file SCD1.DLL (the 2nd and 3rd character of the name appears to be random) in the SYSTEM directory.

The worm prepends a copy of the files that are named in the SCD.DLL file and attaches this copy to the email messages that it sends via a built in SMTP server, using one of the following extensions: .BAT, .COM, .EXE, .LNK, .PIF. This results in attachment names having double-extensions.

The program creates a registry key to store variables for itself (such as a run count, and SMTP information):
HKLM\Software\Sircam


Indications Of Infection:
Presence of SCam32.exe in the WINDOWS SYSTEM directory.

Method Of Infection:
This virus sends itself, as an executable, to email recipients found in the Windows Address Book and addresses found in cached files. This executable is appended with a document if one is found in MY DOCUMENTS folder. The mailing routine uses a built in SMTP server and server address found in infected executables. This address is presumably captured from the victim's machine which sent the virus to you. If that server is not in operation, or if relaying is not permitted, the virus attempts to use each of these three servers, stopping when the first successful send occurs.

doubleclick.com.mx
enlace.net
goeke.net

Removal Instructions:
Use your antivirus with the most recent DAT files.  I know that both McAfee and Norton have this virus in their updates.

Windows ME Info:
NOTE: Windows ME utilizes a backup utility that backs up selected files automatically to the C:\_Restore folder. This means that an infected file could be stored there as a backup file, and VirusScan will be unable to delete these files. These instructions explain how to remove the infected files from the C:\_Restore folder.

Disabling the Restore Utility

1. Right click the My Computer icon on the Desktop.
2. Click on the Performance Tab.
3. Click on the File System button.
4. Click on the Troubleshooting Tab.
5. Put a check mark next to "Disable System Restore".
6. Click the Apply button.
7. Click the Close button.
8. Click the Close button again.
9. You will be prompted to restart the computer. Click Yes.
NOTE: The Restore Utility will now be disabled.
10. Restart the computer in Safe Mode.
11. Run a scan with VirusScan to delete all infected files, or browse the file's located in the C:\_Restore folder and remove the file's.
12. After removing the desired files, restart the computer normally.
NOTE: To re-enable the Restore Utility, follow steps 1-9 and on step 5 remove the check mark next to "Disable System Restore". The infected file's are removed and the System Restore is once again active.