Backdoor.FTP.Casus.15
Description Backdoor.FTP.Casus.15
The program poses as an FTP-server and informs its host, via ICQ or e-mail, of the presence of networks.
Upon execution of the virus code, "Casus" registers itself in the system registry so that it will automatically run when the infected system is rebooted. Via e-mail and ICQ, Casus sends notifications to its host (hacker receiving the network notifications) and begins to listen, clandestinely, over the TCP/IP protocol on port 21. Having received the notices, informing him of located networks, the virus host with the help of any FTP-client gains access to file systems on victim computers.
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Nigeb.890
Description Nigeb.890
It is a dangerous memory resident encrypted parasitic virus. It hooks INT 1Ch, 21h and writes itself to the end of COM files that are executed.
While writing to the files (INT 21h, AH=40h) the virus converts the strings "BEGIN" (lower or upper-cased) to "NIGEB". On INT 1Ch (timer) calls it scans the screen for "NIGEB" strings, and converts them to "BEGIN".
The virus contains the text strings:
igeb
egin
AntiPascal-1 (C)Godzilla Corp.
Night.2048
Description Night.2048
It is a dangerous memory resident parasitic encrypted virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed or opened. Depending on the number of infections it corrupts MBR of the hard drive, beeps, hooks INT 1Ch and displays a rude message.
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