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Messev.277 Viruses Information

Name: Messev.277
Category: Viruses
Description: Details
Messev.2778

This is a very dangerous memory resident virus. It infects DOS COM and EXE files as well as drops a boot instance that then infects boot sectors only and is not able to infect DOS executable files. The virus is encrypted in both files and sectors, it is also stealth in both its instances.
When an infected file is executed the virus decryption routine takes control, restores the virus in its original form and passes control to the virus installation routine. The virus then traces and hooks INT 13h, 21h, infects the MBR of the hard drive and command processor pointed by the COMSPEC= instruction.
While infecting files the virus writes itself to the end of the file. It affects the files that are executed, created, opened, accessed by Get/Set file attribute function and ever deleted. The virus disinfects infected files under debugger and on writing to such files (stealth). The virus also runs stealth routines on accessing file length and time&date stamp, on executing the PKZIP, ARJ, LHA, RAR and CHKDSK utilities the virus disables these routines.
When TBSCAN anti-virus is executed, the virus appends to the end of command line options that disable TBSCAN memory and heuristic scanning. Under debugger the virus erases the hard drive sectors and reboots the computer. While infecting the MBR of the hard drive the virus erases the file:
C:WINDOWSSYSTEMIOSUBSYSHDFLOP.PDR
The virus also contains the text strings:
=[ Messev v1.00, (c) 1998 by T-2000 / Invaders ]=
Daddy-K-tit 2 Gällyon van Vessem
If I don't passall fuck it!
SKLSUX!'
[ DEMANUFACTURE - FEAR FACTORY ]



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