Subject: Infection with the Win32/SirCam.137216 virus

From: "Guinevere VirusScan" <[email-masked]>
Date: Tue, 24 Jul 2001 12:58:26 +0100

Your PC may have become infected with the Win32/SirCam.137216 virus.

Please inform your IT Department about this problem and scan your PC with an antivirus scanner and cure/delete any infected files you find.
If this does not detect any viruses you need to install the latest updates to your antivirus software. These can usually be downloaded for free from your antivirus software vendors website.
If you are not running any antivirus software then download for free InoculateIT Personal Edition from http://antivirus.cai.com/ 

Please do this as soon as possible.

If you have any questions please contact me on +44 1536 464219

Thanks

James Dell
GB IT Helpdesk
Willett Ltd

Details on the virus appear below:

Win32.SirCam.137216 (also known as Win32.SirCam.Worm)
Win32.SirCam.137216 is an email worm which sends itself as well as clean documents from an infected machine. The worm arrives in a message which may be either English or Spanish. The English messages appear like this: 

Hi! How are you? 
I send you this file in order to have your advice
See you later. Thanks 

The middle line may be chosen at random from one of the following: 

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

The Spanish message looks like: 

Hola como estas ? 
Te mando este archivo para que me des tu punto de vista 
Nos vemos pronto, gracias. 

The middle line may be one of the following: 

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

The attachment name is variable, but will have a double extension, for example "SCRIPT.DOC.PIF". The actual extension may be "PIF", "LNK", "BAT", "EXE" or "COM". The subject of the message matches the attachment name, except without the extensions. In the above example the subject would be "SCRIPT". 

When run, the worm copies itself to "C:\RECYCLED\SirC32.exe" as well as "SCam32.exe" in the Windows System directory. It modifies two registry keys: 

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices\Driver32="\SCam32.exe"
HKEY_CLASSES_ROOT\exefile\shell\open\command=""C:\recycled\SirC32.exe" "%1" %*" 

The first key causes the worm to run when Windows starts. The second causes the worm to be run whenever any .EXE program is executed. The worm gets a list of .DOC, .XLS and .ZIP files in the "My Documents" folder. It appends one of these files to the end of itself and saves the result to the Recycled folder, adding the second extension to the filename as listed previously. This file is attached to the emails that the worm sends. 

The worm may make several copies of itself with different DOC, XLS or ZIP files attached, depending upon what it finds in the "My Documents" folder. It continually sends these copies out to addresses it finds in the Windows address book and internet cache files, and may send multiple copies to the same address. 

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only for the person or entity to which it is addressed
and may contain confidential and/or privileged material.
Any review, retransmission, dissemination or other use of,
or taking of any action in reliance upon, this information
by persons or entities other than the intended recipient
is prohibited.   If you received this in error, please 
contact the sender and delete the material from any computer.

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