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"msblast.exe"

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Tue 12/08/03 at 16:02
Regular
Posts: 787
Last night I experianced something very strange - My computer kept on telling me there was an error with something and had to shutdown in 1 minute.

Turns out there's been a major security alert with NT based OS's and a virus has been spread to those who are vunrable. Luckily Zonealarm picked up 204 attempted "outgoing" connections from the application "msblast.exe" and told me to block the connection and download a patch from MS's site.

This is a warning to all XP user's - Check the "processes" list in task manager and see if ms blast is there.

****

"This worm spreads by exploiting a vulnerability in the RPC service for DCOM. This is described along with the fix for it in Microsoft Security Bulletin MS03-026. This affects the following systems; Windows NT 4, Windows 2000, Windows XP and Windows Server 2003. The worm also performs a Denial of Service (DoS) attack on the windowsupdate.com server.

The worm exploits vulnerability in DCOM RPC. It subsequently searches IP addresses and when it finds a vulnerable computer it uses the exploit to remotely run a shell which issues a command for downloading a copy of itself by TFTP. The copy of the worm is lunched directly after download.

When the worm is lunched it copies itself as a file named msblast.exe to the SYSTEM32 folder and registers msblast.exe as a windows auto update item in the following registry key

If your computer is infected by this virus, you will have to apply the Microsoft security patch available from this link:

microsoft.com/technet/security/bulletin/MS03-026.asp

Symptoms of the worms existence within a network (LAN):
- increased traffic on UDP port 69 (TFTP used by worm for downloading
- increased traffic on port 135 or 593 (worm sending data to try and exploit RPC for DCCOM)
- sudden system crashes reporting fault in RPC

Recommendation for network administrators is to disable outward access on ports 135 and 593 used by worm.

Virus also contains these texts:
I just want to say LOVE YOU SAN!!
billy gates why do you make this possible ?
Stop making money and fix your software!!"


************

Heh. Clever - Yet scary.
Tue 12/08/03 at 18:25
Regular
"cachoo"
Posts: 7,037
Ah good good. So that bit's sorted. It hasn't gotten rid of the IGator folder and contents. Is that my job? To delete the folder?
Tue 12/08/03 at 18:27
Posts: 2,131
Well if tricker isn't running anymore after restarting, it's best to forget about it.
Tue 12/08/03 at 18:29
Posts: 2,131
If it's empty, try deleting it anyway.
Tue 12/08/03 at 18:30
Regular
Posts: 16,558
The prob is people dont use Windows update enough!
Tue 12/08/03 at 18:32
Regular
"cachoo"
Posts: 7,037
Icarus wrote:
> Well if tricker isn't running anymore after restarting, it's best to
> forget about it.

Heh. I forgot to restart. All gone from the Task Manager now. Still the folders and content is left. I'll just delete.
Thank you! :D
Tue 12/08/03 at 18:34
Posts: 2,131
Yeah, sorted.

To be honest, I haven't used Windows Update for months now. Not setting a good example, am I?
Tue 12/08/03 at 18:35
Regular
Posts: 16,558
:D True i check everyday i dont even need a firewall most of the time since i've made sure im protected.
Tue 12/08/03 at 18:47
Posts: 2,131
The problem is, everytime I install something the computer takes even longer to startup again... and for an OS promising to load up in 20 seconds, after installing all the updates it would be a miracle if it loaded in a minute.
Tue 12/08/03 at 19:18
Regular
Posts: 10,364
I think I fixed it.

ZoneAlarm alerted me that msblast wanted to access the internet - So I blocked it from doing so.

Downloaded the Lovsan patch from windows update.

Cleared the virus with my virus checker.

Is that enough?
Tue 12/08/03 at 19:28
Regular
"Best Price @ GAME :"
Posts: 3,812
How many of you with the virus use Kazaa ? When I was on last night Norton was flashing up warnings like mad, took ages to find a non infected file.

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