Kedves Kollegak!
Egy rovid idovel ezelott altalam kuldott mailel sajnos szetdobtam egy
(egyebkent artalmatlan) Happy99 virust. Kompenzalando ezt a gaztettemet
itt mellekelek egy leirast, hogy hogyan lehet tole megszabadulni.
0. Nem szabad az uuencodolt Happy99.exe filet kibontani, hanem az egesz
mailt torolni kell. Ha ez mar megtortent, akkor pedig az alabbiakat kell
kovetni
Happy99.Worm
VirusName:
Happy99.Worm
Aliases:
Trojan.Happy99, I-Worm.Happy
Likelihood:
Common
Region Reported:
World Wide
Characteristics:
Trojan Horse, Worm
Description:
This is a worm program, NOT a virus. This program has reportedly been
received through email spamming and USENET newsgroup posting. The file
is usually named HAPPY99.EXE in the email or article attachment.
When being executed, the program also opens a window entitled "Happy New
Year 1999 !!" showing a firework display to disguise its other actions.
The program copies itself as SKA.EXE and extracts a DLL that it carries
as SKA.DLL into WINDOWS\SYSTEM directory. It also modifies WSOCK32.DLL
in WINDOWS\SYSTEM directory and copies the original WSOCK32.DLL into
WSOCK32.SKA.
Removing the worm manually:
1.delete WINDOWS\SYSTEM\SKA.EXE
2.delete WINDOWS\SYSTEM\SKA.DLL
3.in WINDOWS\SYSTEM\ directory, rename WSOCK32.DLL to WSOCK32.BAK
4.in WINDOWS\SYSTEM\ directory, rename WSOCK32.SKA to WSOCK32.DLL
5.delete the downloaded file, usually named HAPPY99.EXE
Windows prevents you to do step #3 and #4 above if the machine is still
connected to the Internet.
The file "windows\system\wsock32.dll" is used whenever the machine is
connected to Internet (i.e. through dial-up or LAN connection).
Write-up by: Raul K. Elnitiarta
March 2, 1999
--
Laszlo E. Szabo
Department of Theoretical Physics
Department of History and Philosophy of Science
Eotvos University, Budapest
H-1518 Budapest, Pf. 32.
Phone: (36-1)2090-555/6671
Fax: (36-1)372-2509
Home: (36-1)200-7318
http://hps.elte.hu/~leszabo