Virus.DOS.Claudia.8772 is a dangerous memory resident parasitic encrypted virus on DOS.


When the virus is loaded into memory, it triggers the payload by instant.

After that it hooks INT 21h to infect any EXE executable file that is run, by encrypting its code, and insert it into the end of the file.

Some routines were poorly programmed, as the virus might crash the system after installing itself into memory. Files infected by this virus usually cannot function properly and would crash the system if run.

Advanced details

The TSR memory usage of this virus is 21,056 bytes.

MD5 hash:



Before the virus starts infecting files, it activates by switching the video mode to CGA, and display the text with an image of Claudia Schiffer (in a way similar to Implant):

Das ist ClaudiaSchiffer virus by OS
Sometimes when U stroling down the
Avenue the way U walk it makes men
Thinkof HAVING U when U walking
Down the street everybody stops
&  turns 2 stare at U! (IrM)
Hope 2 meet U...somewhere in time

The virus returns to DOS and restore the video mode after a keypress.

Other details


Claudia Schiffer is a German model, actress and fashion designer. She rose to fame in the 1990s and became one of the most successful models in world. In European and American fashion she also has the other title of "Realized Babie".




Claudia virus review by Alles Sandro