Win32.Sinn
Description Win32.Sinn
Win32.Sinn is a harmless Win32 virus.
It searches for and infects Win32 applications (PE files) with the extensions .EXE, .CPL, and .SCR The virus writes itself to the end of the file. If the final section is called '.reloc', the virus will rename it '.ultras'.
This virus does not infect files more than once, and contains bugs.
The virus does not show that it is present in the system. It contains the text:
'SiN by ULTRAS [MATRiX]'
'thnx Vendigo'
This text can be seen on inspection of an infected file.
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PresidentB.1504
Description PresidentB.1504
This is a very dangerous memory resident encrypted multipartite virus. When an infected file is executed, the virus decrypts itself, hooks INT 13h and 21h, and returns control to the host program. While loading from an infected floppy disk, the virus hooks INT 12h and 13h, and waits for the DOS loading process and hooks INT 21h.
The virus then writes itself to the end of COM and EXE files that are executed or loaded as overlays or for debugging. Upon accessing 1.4Mb-floppy disks, the virus infects their boot sectors.
On April 26th, the virus erases the MBR of the hard drive and displays the following message:
** President B ][ **
Press.1024
Description Press.1024
It is a harmless nonmemory resident parasitic virus. It searches for EXE files of the subdirectory tree, then writes itself to the end of the file. In some cases the virus displays:
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