Summary

Dumaru.F is very similar to Dumaru.B with the following differences:

- File infection routine has been removed

- IRC backdoor component has been removed

- Uses different email address to post the stolen data

- The email address where is sends the stolen data is updatable through the TCP backdoor

- FTP uploading of stolen data has been enabled. This feature was disabled in Dumaru.B. The FTP site it would use is inaccessible at this point.

Detailed description of Dumaru.B is available at

http://www.f-secure.com/v-descs/dumaru_b.shtml

Detection

F-Secure Anti-Virus detects this worm variant with:

[FSAV_Database_Version]
Version=2003-09-09_03

Technical Details: Gergely Erdelyi, 9th of September, 2003

F-Secure Corporation