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Capital Alias: Strain: - detected when: where: Classification: COM-infector, resident Length: 7AH paragraph(s) Preconditions Operating System(s): MS-DOS Version/Release: DOS >= 2.0 Computer model(s): PC's Caroname: Capital
Attributes Easy identification: Type of Infection: Appending, uses DOS file length to position virus. Selfrec in memory: INT_21; AX=4BEE; SI=5448 -> DI=4950 Selfrec on disk: (File[0] = E9) AND (File[1] = EndOfOrgFile)COMJump to end of org file Infection Technique: Infection Trigger: (Exec) AND (LengthCOM <= 63500) Storage Media affected: Interrupts hooked: 21/4B00, 21/4BEE, 28, 1C Stealth: Tunneling/Selfprot: Oligo/Polymorphism: - Encoding Method: Damage: Transient: On 80x25 text mode screens it converts lowercases touppercases (only once) Permanent: - Damage Trigger: Transient: (Month = even) AND (DayOfWeek = even) AND (Time = 11:11:11) Permanent: - Particularities: only shrinks the current MCB if it is a 'Z' block. (Only leaves a mess if there is another chain of MCBs, eg for UMBs). Similarities:
Agents Countermeasures: Standard means:
Acknowledgements Location: Virus Test Center, University Hamburg, FRG Classification by: BSI (GISA) / V2, Hubert Schmitz Documentation by: BSI (GISA) / V2, Hubert Schmitz Date: 1995-03-22 Information Source: Caroentry (autom.converter by S.Freitag)
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