SUNTRONIC Virus (5-June-1990)
Entry...............: SUNTRONIC Antivirus Virus
Alias(es)...........: ---
Virus Strain........: SUNTRONIC Virus
Virus detected when.: October 1989
              where.: Elmshorn, FRG
Classification......: system virus (bootblock), resident
Length of Virus.....: 1. length on storage medium: 1024 byte
                      2. length in RAM           : 1024 byte
--------------------- Preconditions -----------------------------------
Operating System(s).: AMIGA-DOS
Version/Release.....: 1.2/33.180
Computer model(s)...: AMIGA 500, AMIGA 1000, AMIGA 2000A, AMIGA 2000B
--------------------- Attributes --------------------------------------
Easy Identification.: typical texts: '(C) by Suntronic', 'VORSICHT! 
                         KEIN STANDARD BOOTBLOCK', 'Linke Maustaste = 
                         Weiter', 'Rechte Maustaste = Disk
                         installieren', 'SCHREIBSCHUTZ AN!', 'Linke
                         Maustaste = Weiter','Rechte Maustaste = Neuer
                         Versuch','Rechte Maustaste = Checker inaktiv'
Type of infection...: self-identification method: in bootblock at byte
                         752 ascii 'Sunt' (hex. $02F0)
                      system infection: RAM resident, reset resident,
                         bootblock
Infection Trigger...: reset, any disk access
Storage media affected: only floppy disks (3.5" and 5.25")
Interrupts hooked...: ---
Damage..............: permanent damage: overwriting bootblock after
                         detecting a non standard bootblock and re-
                         questing for bootblock installation
                      transient damage: screen buffer manipulation:
                         (see above) while detecting a non standard 
                         bootblock
Damage Trigger......: permanent damage: reset, detecting a virus and
                         using the 'KILL VIRUS' option
                      transient damage: (see above)
Particularities.....: detecting a virus causes SUNTRONIC to ask for a
                         bootblock installation, but SUNTRONIC is 
                         written and not a standard bootblock, so a 
                         boot loader may be destroyed; if no instal-
                         lation is requested, SUNTRONIC asks whether
                         it shall be removed from system, in this case 
                         memory is cleared (but not allocated) and 
                         CoolCapture vector is reset to default 
                         ($00000000); interrupt vectors 3 and 6, 
                         DoIO() entry and KickTag pointer are set to
                         the default values of KICKSTART 1.2 
                         (release 33.180); ColdCapture vector isn't 
                         changed nor tested; memory range ($0007E000 ..
                         $0007FA00) is cleared because a lot of the 
                         known viruses use this region.
Similarities........: ---
--------------------- Agents ------------------------------------------
Countermeasures.....: Names of tested products of Category 1-6:
                      Category 1: .2 Monitoring System Vectors:
                                     'CHECKVECTORS 2.2'
                                  .3 Monitoring System Areas:
                                     'CHECKVECTORS 2.2','GUARDIAN 1.2',
                                     'VIRUSX 4.0'
                      Category 2: Alteration Detection: ---
                      Category 3: Eradication: 'CHECKVECTORS 2.2',
                                     'VIRUSX 4.0'
                      Category 4: Vaccine: ---
                      Category 5: Hardware Methods: ---
                      Category 6: Cryptographic Methods: ---
Countermeasures successful: 'CHECKVECTORS 2.2', 'GUARDIAN 1.2',
                            'VIRUSX 4.0'
Standard means......: 'CHECKVECTORS 2.2'
--------------------- Acknowledgement ---------------------------------
Location............: Virus Test Center, University Hamburg, FRG
Classification by...: Alfred Manthey Rojas
Documentation by....: Alfred Manthey Rojas
Date................: 5-June-1990
Information Source..: --

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