Net-Worm.Win32.Mytob.r
Description Net-Worm.Win32.Mytob.r
This network work infects computers running Windows. The worm itself is a Windows PE EXE file, approximately 63KB in size, packed using UPX. The unpacked file is approximately 164KB in size; however, there are several modifications of this version of Mytob, some of which use different packersall.
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Patr.1536
Description Patr.1536
This is a dangerous non-memory resident parasitic virus. It searches for EXE-files, then writes itself to the end of the file. On the 14th of any month, the virus corrupts CMOS. The virus contains the text strings:
*.exe *.*
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Retaliator v1.0
Patras.1972
Description Patras.1972
This is a dangerous memory resident multipartite virus. While executing an infected EXE file the virus writes itself to the boot sector of the C: drive and then returns the control to the host file.
While loading from infected disk the virus hooks INT 8, waits for DOS loading procedure, allocates the DOS memory, copies itself to there, and hooks INT 21h. Then it writes itself to the end of EXE files that are executed. While infecting a file the virus also deletes the CHKLIST.MS file, if it exists.
After 60th infection the virus hooks INT 10h (Video) and manifests itself with sound and video effects: it displays the messages and launch "hearts" (03 ASCII) jumping on the screen. The messages are:
A lovely heart fell from the sky !!!
KARNAVALI OF PATRAS !!!
*** PATRAS H/Y ***
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