| Alias: | SCA-KEFRENS virus |
| Strain: | SCA virus strain |
| detected when: | --- |
| where: | --- |
| Classification: | System virus (bootblock), resident |
| Length: | 1. Length on storage medium: 1024 byte 2. Length in RAM: 1024 byte |
Preconditions | |
| Operating System(s): | AMIGA-DOS |
| Version/Release: | 1.2/all, 1.3/all, 2.0/all |
| Computer model(s): | All models |
| Caroname: | SCA.Kefrens.1 |
Attributes | |
| Easy identification: | Typical text: "A!SCA!SCA!SCA!SCA!SCA!SCA!SCA!r! STARFIRE/NORTH STAR" |
Type of Infection: | Self-identification method: testing 3rd longword for matching string "CHW!" System infection: RAM resident, reset resident, bootblock |
| Infection Technique: | |
| Infection Trigger: | Reset |
| Storage Media affected: | Only floppy disks (3.5" and 5.25") |
| Interrupts hooked: | --- |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| Damage: | Permanent damage: overwriting bootblock Transient damage: screen buffer manipulation: screen becomes black, message (see above) is shown by fading in and out pieces of it. |
| Damage Trigger: | Permanent damage: reset Transient damage: 15th infection. |
| Particularities: | Any resident program using the CoolCaptureVector is shutdown, also those using ColdCaptureVector when virus is shutdown by its `suicide` function. |
| Similarities: | SCA virus family |
Agents | |
| Countermeasures: | VirusZ 3.00, VT 2.48, BootX 5.23 |
| Standard means: | VT 2.48 |
Acknowledgements | |
| Location: | Virus Test Center, University Hamburg, FRG |
| Classification by: | Jens Vogler |
| Documentation by: | Jens Vogler |
| Date: | 14th December 1992 |
| Information Source: | Virus Analysis |
(c) 1996 Virus-Test-Center, University of Hamburg