i posted this problem in the malware removal forum and was redirected here by greyknight17.
here's a copy of my original post:
"i have a disturbing problem with my machine.
once in a while, while working with my lap top it suddenly starts to beep and 3 of its lights are blinking. after one minute or so it shuts down.
i didn't manage to do anything against it.
i have two other problems which might be related.
a while ago, i was surfing the net unprotected and got infected with all kinds of #%@#.
i managed to remove most of these pests, but my AntiVir now displays the message "can't create a report file" before preforming a scan. then, the scan detects an IstBar trojian (ysb_regular.cab) which it can't fix since "infected files in archives will not be deleted or repaired"..
i downloaded and ran the Symantec Cooperation fix tool but it didn't find IstBar on my computer..
i use winxp and still did not update it with the sp2 service pack.."
since i wrote this mail, my computer started to beep and shut down almost immediatly after i turn it on and i cannot operate it. even when i boot into safe mode the problem prevalis.
here are some technical details about my laptop:
i bought it in germany from some unknown firm. it is simply called notebook computer. the label on it says it's model d4105. It was assembled with parts of many different manufactors.
my CPU is: Intel Celeron 2.4 GHz and i have 256 MB of memory.
the beeps are short and last for approx. one minute before shut down.
if you need to know the exact num of beeps let me know and i'll count them.
if someone can help me out i'll be grateful.