System changes log please! Vulnerability to worms annoying :(

[Vladimir]

Yesterday, checking my system with new DrWeb antivirus (my resident Avast)
found H@tKeysH@@k.dll in my system32 folder plus resident worm in system
restore folder (best place for any worms since I cant check/delete there
manualy, heaven for any viruses).
Now I even have no idea when/how it appers there and even have no idea what
caused that. Is it so hard making system changes log? Not
winsysdir/changes.txt (find file + remove my virus added, easy), but some
smarter, stronger with search. Even with all registry (why not put virus body
there as blob? go find it!) + file changes (should I know how long keys
hooked?). And finaly wth I should or run everything as administrator,
allowing any media player full acces to everything, or be a restricted rights
user, able to use only notepad or MsOffice, or entering login/password any
time I rebuild my HelloWorld.exe (keylogger, here is my logons, since you in
my system as administrator - catch)?

 

[News Reader]

Start disk cleanup from the accessories -> system tools and in the advanced
tab select remove all but the latest restore point. Then run you antivirus
program again.

Disk clean up may take a while if you have a larger disk such as one of the
1 TB disks that are widely available. The slowness is due to file checking
for compressing seldom used files to save space and with lots of files it
can take a while.

 

[Vladimir]

Start disk cleanup from the accessories -> system tools and in the advanced
tab select remove all but the latest restore point. Then run you antivirus
program again.

Did it not so long ago through system restore / turn off system restore for
all hard disks / enable for C: again. Bad idea after installing sp3 today
(start->all programs bugged sp3, winXP pro russian, notebook xp pro english +
sp3 looks good).
Btw that cant help me trace what and why happens and have I still
program/installer that cause problem. 2 years ago had problems by manually
removing virus while Symantec Norton Antivirus spend 2 weeks making
signature. Some better protection than "anything can do anything" required. I
have resident antivirus + 2 firewalls, noscript in firefox and carefull
enough not installing trash like CoolProgram.jpg.exe. Thats not enough still.