Re: W32.HLLW.Cult.C@mm worm

From: Axel Pettinger <api(at)epost.de>
Date: Wed May 07 2003 - 15:25:55 EDT

Kevin Patz wrote:
>
> Over the past few days I've been receiving emails

You could check the IPs in the email header and notify the ISP of the victims.

> Lastly, it seems like this worm isn't well known

McAfee and also F-Secure know what Symantec calls "W32.HLLW.Cult.C@mm". But only Symantec seems to call it a worm, other av scanners report it as a trojan. The following anti virus scanners detect the trojan as ...:

    Dialogue Science DrWebWCL  : BackDoor.IRC.Sdbot.based
    Frisk Software F-PROT      : W32/SDbot.H
    GeCAD RAVAV                : Backdoor:Win32/SdBot **
    Kaspersky Lab KAVDOS32     : Backdoor.SdBot.gen
    McAfee SCANPM              : IRC-Sdbot trojan
    Symantec NAV CE VSCAND     : W32.HLLW.Cult.C@mm

• heuristically

McAfee's description of the malware can be found here: http://vil.nai.com/vil/content/v_99410.htm

To me it looks like the trojan is a mix between the SdBot IRC trojan and the Cult worm. After execution it tries to connect IRC channels on irc.undernet.org and dragonx.hopto.org. The latter seems not to be available anymore, but when I joined the trojan channel on irc.undernet.org I counted 1338 victims there. Not exactly what I'd call "low wild" ... :/

The bot identifies itself as "Code-Blue Bots v1.0".

Regards,
Axel Pettinger

---

Attend Black Hat Briefings & Training Europe, May 12-15 in Amsterdam, the world's premier event for IT and network security experts. The two-day Training features 6 hand-on courses on May 12-13 taught by professionals. The two-day Briefings on May 14-15 features 24 top speakers with no vendor sales pitches. Deadline for the best rates is April 25. Register today to ensure your place. http://www.securityfocus.com/BlackHat-focus-virus

---

Received on Thu May 8 11:41:47 2003