"Dark Avenger" Virus (15-Feb-1990)
Entry...............: Dark Avenger
Alias(es)...........: ---
Virus Strain........: Dark Avenger
Virus detected when.: November 1989
              where.: USA
Classification......: February 1990
Length of Virus.....: about 1800 Bytes
--------------------- Preconditions -----------------------------------
Operating System(s).: DOS 
Version/Release.....: 
Computer model(s)...: IBM-compatible
--------------------- Attributes --------------------------------------
Easy Identification.: Two Texts:
                      "Eddie lives...somewhere in time" at beginning
                      and
                      "This Program was written in the City of Sofia
                      (C) 1988-89 Dark Avenger" near end of file
Type of infection...: Link-virus
                      COM-files: appends to the program and installs a
                                 short jump
                      EXE-files: appends to the program at the
                                 beginning of the next paragraph
Infection Trigger...: COM and EXE files are corrupted on any read
                      attempt even when VIEWING!!!
Storage media affected: Any Drive
Interrupts hooked...: Int 21 DOS-services
                      Int 27 Terminate and Stay Resident
Damage..............: Overwrites a random sector with bootblock
Damage Trigger......: each 16th infection; counter located in Bootblock
Particularities.....: -
Similarities........: -
--------------------- Agents ------------------------------------------
Countermeasures.....: NONE! All data can be destroyed !!!!
                      There is no way in retrieving lost data.
                      Backups will most probably be destroyed too.
Countermeasures successful: install McAfee's SCANRES.
Standard means......: Good luck! Hopefully the virus did not destroy 
                      too many of your programs and data.
--------------------- Acknowledgement ---------------------------------
Location............: VTC Uni Hamburg
Classification by...: Matthias Jaenichen
Documentation by....: Matthias Jaenichen
Date................: 31.01.1990
Information Source..: ---

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