Cj.304
Description Cj.304
It's a memory resident dangerous parasitic virus. It hooks INT 21h and writes itself to the end of .COM- and .EXE-files that are executed. The virus only correctly infects .COM-files. On infection of .EXE-file it appends to the file its body only without correction of EXE-header. These .EXE-files are executed as not infected. Depending on the system timer this virus corrupts the files: it overwrites them by several JMP instructions. It also contains the internal text string "C J".
Check other viruses! Be aware! Use Antiviral Software
April4.751
Description April4.751
This is a very dangerous non-memory resident parasitic virus. It searches for .COM files, then writes itself to the end of the file. Under debugger and on April 4th, the virus formats the hard drive.
Arab.834
Description Arab.834
It is a dangerous memory resident parasitic virus that by standard way hits COM-files (except COMMAND.COM) at their starting. The infected files contain the string "nsed Materi" at their beginning. The virus creates a counter into the Master Boot Record of the hard drive at address 180h. The counter increments when every file is started. When the counter grows to 256, the virus writes small code into first 3 bytes of MBR. This code contains 2 assembler instructions that stop a computer booting. The infector hooks INT 21h.
|