Nikki.3133
Description Nikki.3133
It is a harmless memory resident parasitic polymorphic virus. It hooks INT 21h and writes itself to the end of COM and EXE (except COMMAND.COM) files that are executed, opened, renamed or when file attributes are accessed. The virus sets read-only attribute for infected files. The virus does not infect the programs: VIR*, CLEAN, DEBUG, SCAN, NAV. The virus deletes the anti-virus data files CHKLIST.*.
The virus contains the text strings:
TO Nikki Edval ng TorOntCan.FROM Putoksa Kawayan.
Kathang-isip sa Metro Manila, Philippines
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AT-Corp.321
Description AT-Corp.321
This is a harmless memory resident multipartite virus. It hooks INT 13h and writes itself into free space (cave) in EXE-header when such headers are accessed with INT 13h (the corresponding sectors are read/written via INT 13h). The length of the file does not grow while infecting.
It also infects MBR of the hard drive and installs itself memory resident only while booting from infected MBR.
The virus contains the text string:
(c)AT Corp. 1995
AT-Corp.363
Description AT-Corp.363
This is a harmless memory resident parasitic virus. It hooks INT 13h and writes itself into free space (cave) in EXE-header when such headers are accessed with INT 13h (the corresponding sectors are read/written via INT 13h). The length of the file does not grow while infecting.
The virus contains the text string:
(c) AT Corp. 1994
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