Sophos

W32/Bobax-S

Aliases
  • W32.Bobax.AH@mm
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Email attachments
  • Infected files
Affected operating systems Windows
Characteristics
  • Drops more malware
Included in our products from November 2005 (3.99)
Protection available since 10 September 2005 15:27:12 (GMT)
Last updated 4 October 2005 10:27:55 (GMT)
Detected by All Sophos products

Action

More Information

W32/Bobax-S is an email and network worm for the Windows platform.

W32/Bobax-S can send itself to email addresses harvested from the infected computer and spread to other computers by exploiting the PNP (MS05-039) vulnerability.

W32/Bobax-S attempts to contact a number of preconfigured internet sites in order to report successful infection.

Emails sent by the worm have the following characteristics:

Subject line:

Cool

Message text taken from:

Saddam Hussein - Attempted Escape, Shot dead
Attached some pics that i found

Osama Bin Laden Captured.
Attached some pics that i found

Testing

Secret!

Hey,
Remember this?

Hello,
Long time! Check this out!

Hey,
I was going through my album, and look what I found..

Hey,
Check this out :-)

+++ Attachment: No Virus found
+++ Panda AntiVirus - You are protected
+++ www.pandasoftware.com

+++ Attachment: No Virus found
+++ Norman AntiVirus - You are protected
+++ www.norman.com

+++ Attachment: No Virus found
+++ F-Secure AntiVirus - You are protected
+++ www.f-secure.com

+++ Attachment: No Virus found
+++ Norton AntiVirus - You are protected
+++ www.symantec.com

Possible attachment filenames:

pics.1
funny.1
bush.1
joke.1
secret.2

Possible attachment extensions:

pif
exe
scr
zip W32/Bobax-S is an email and network worm for the Windows platform.

W32/Bobax-S can send itself to email addresses harvested from the infected computer and spread to other computers by exploiting the PNP (MS05-039) vulnerability.

W32/Bobax-S attempts to contact a number of preconfigured internet sites in order to report successful infection.

Emails sent by the worm have the following characteristics:

Subject line:

Cool

Message text taken from:

Saddam Hussein - Attempted Escape, Shot dead
Attached some pics that i found

Osama Bin Laden Captured.
Attached some pics that i found

Testing

Secret!

Hey,
Remember this?

Hello,
Long time! Check this out!

Hey,
I was going through my album, and look what I found..

Hey,
Check this out :-)

+++ Attachment: No Virus found
+++ Panda AntiVirus - You are protected
+++ www.pandasoftware.com

+++ Attachment: No Virus found
+++ Norman AntiVirus - You are protected
+++ www.norman.com

+++ Attachment: No Virus found
+++ F-Secure AntiVirus - You are protected
+++ www.f-secure.com

+++ Attachment: No Virus found
+++ Norton AntiVirus - You are protected
+++ www.symantec.com

Possible attachment filenames:

pics.1
funny.1
bush.1
joke.1
secret.2

Possible attachment extensions:

pif
exe
scr
zip

The worm injects code into the explorer process in an attempt to evade firewalls. W32/Bobax-S may also be used as an email proxy or relay, allowing remote users the ability to route email anonymously through the infected computer.

A patch for the vulnerability exploited by W32/Bobax-S is available from:

MS05-039

RSS|Atom
Get reports about the latest virus and spyware threats delivered to your computer