Virus.Win32.Nsag.a
Description Virus.Win32.Nsag.a
Virus.Win32.Nsag.a is a detection for an infected copy of the Windows' wininet.dll file. The purpose of this infection is to transfer calls to the HttpSendRequest function to a malicious .dll file. There are several pieces of malware which install Virus.Win32.Nsag.a, (often referred to asall
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Costeau.512
Description Costeau.512
It's a memory resident harmless parasitic EXE-virus. On execution it checks the DOS version and if it is not DOS ver 3.x the virus passes the control to the host program. If the current DOS is 3.30 the virus copies itself into the DOS system buffer and hooks INT 21h. Then it infects the EXE-files that are executed. It contains the internal text strings: "COSTEAU", "End.".
Costin.703
Description Costin.703
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are executed. The virus also hooks INT 9, 28h, 2Fh but does not use these hooks in any way, except INT 2Fh. The only intercepted function in INT 2Fh virus handler is virus' "Are you here?" call to detect its resident copy.
The virus contains the text strings:
COSTIN
Hi hacker !
If you change this code your system will crash and burn !
Bye hacker !
Despite on this text the virus does not perform any action if its code it modified. The only one hack may cause system crash: the text "COSTIN" is used as a part of virus code, so if this text is changed the system may halt.
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