it's me said:
Hi you all,
I have something running on my network; its getting to my nerves. I
have
xp with sp2 and all the updates as well as win 2000 with all the
patches. The affected computer has its background changed to a porno
BMP file dropped on the system32 directory (by the way the users
logged onto the system can not write to the sys32dir. and it changes
the reg key HKCU\current\COntrol Pannel\Desktop\Wallpaper\???.bmp
on some computers it turns off the dhcp service and the dns service.
It seems to do no other harm.
I have run norton, trend, panda, add aware, spybot ant it has not
found anything.
Have you ever seen something like this.?
Please Help?
You've been hijacked. You need to take down the network and clean each
machine thoroughly with updated tools in Safe Mode. Get tools and
updates from a different, unrelated known-clean computer with a good
Internet connection and a cd burner. Do not reconnect your network
until both machines are 100% clean. Here are removal steps:
1) Scan in Safe Mode with current version (not earlier than 2003)
antivirus using updated definitions.
2) Remove spyware with Spybot Search & Destroy and Ad-aware. These
programs are free, so use them both since they complement each other.
There is a new version of CWShredder from Intermute. I would not
install the other Intermute programs, however. Alternately, there are
CoolWebSearch malware removal steps at SilentRunners.
Be sure to update these programs before running, and it is a good idea
to do virus/spyware scans in Safe Mode. Make sure you are able to see
all hidden files and extensions (View tab in Folder Options).
HijackThis is an excellent tool to discover and disable hijackers, but
it requires expert skill. See below for HijackThis links. A combination
of HijackThis and About:Buster works well in removing the About:Blank
homepage hijacker. Again, this is an expert tool and novices should get
help with it.
3) If you are running Windows ME or XP, you should disable/enable System
Restore because malware will be in the Restore Points. With ME, you
must disable System Restore completely. With XP, you can delete all but
the most recent (presumably clean) System Restore point from the More
Options section of Disk Cleanup (Run>cleanmgr).
4) Make sure you've visited Windows Update and applied all security
patches. Do not install driver updates from Windows Update.
5) Run a firewall.
Links to help with malware:
Software/Methods:
http://www.safer-networking.org - Spybot Search & Destroy
http://www.lavasoftusa.com - Ad-aware
http://www.majorgeeks.com - good download site
http://www.intermute.com/spysubtract/cwshredder_download.html
http://www.silentrunners.org/sr_cwsremoval.html. - SilentRunners
HijackThis:
http://www.aumha.org/a/hjttutor.htm - HijackThis tutorial by Jim
Eshelman
http://spywarewarrior.com/viewforum.php?f=5 - Spyware Warrior HijackThis
forum
http://www.wilderssecurity.com/
http://forums.tomcoyote.org/
http://www.spywareinfo.com/forums/
General:
http://forum.aumha.org/ - look under "Security" for various forums
http://rgharper.mvps.org/cleanit.htm
http://mvps.org/winhelp2002/unwanted.htm
http://www.aumha.org/a/parasite.htm - The Parasite Fight
http://www.spywarewarrior.com/rogue_anti-spyware.htm
Malke
