AGI-Plan (computer virus)

Computer virus
Fullname = AGI-Plan
Common name = AGI-Plan
Technical name = Month 2-4
Family = Zero Bug
Aliases = Month 2-4, Agiplan
Classification = Virus
Type = DOS
Subtype = COM file, destructive
IsolationDate = Unknown
Isolation = Mühlheim an der Ruhr, Germany
Origin = Unknown
Author = Unknown

"For information on the German consulting company, see Agiplan (company)."

AGI-Plan was a memory resident DOS file infector first isolated at the Agiplan software company in Germany. Because of CARO standards that dictate that viruses should not be named after companies, AGI-Plan's technical name is Month 4-6. This name also violates CARO standards, but a more minor rule involving syntax. AGI-Plan is related to the Zero Bug virus, as both it and AGI-Plan prepend 1,536 bytes to files they infect.

AGI-Plan is not initially damaging until several months after the initial infection, hence its name. After activation, AGI-Plan will begin to corrupt write operations, which results in slow, difficult-to-notice damage overtime.

AGI-Plan is notable for reappearing in South Africa in what appeared to be an intentional re-release several years after. AGI-Plan never succeeded in spreading singificantly beyond the isolated incidents in Germany and South Africa.

External links

* [http://www.f-secure.com/v-descs/agiplan.shtml Month 4-6] , by F-Secure