CLIST Virus (15-July-1991)
Entry...............: CLIST Virus
Alias(es)...........: ---
Virus Strain........: LAMER EXTERMINATOR Strain
Virus detected when.: January 1991
              where.: Australia
Classification......: System virus (bootblock), resident, encrypting
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 text: bootblock: ---
                                    in memory:'clist.library
                                            clist 33.80 (8 Oct 1986)'
Self-identification.: Kicktag pointer points to virus data
Type of infection...: System infection: RAM resident, reset resident,
                                        bootblock
Infection Trigger...: reset (CONTROL+Left-AMIGA+Right-AMIGA),
                      any disk access
Storage media affected: floppy disks  3.5" and 5.25")
Interrupts hooked...: ---
Damage..............: Permanent damage: overwriting bootblock;
                         simulation of standard bootblocks when 
                         examined with any tool; removes expansion 
                         RAM this reducing available memory; virus
                         allocates 1024 bytes in memory and 
                         1096 bytes overall.
                      Transient damage: ---
Damage Trigger......: Permanent damage: reset; any disk access
                      Transient damage: --
Particularities....: uses StartIOVector; other resident programs using
                        system resident list (KickTagPointer, 
                        KickMemPointer) are shutdown; virus encodes 
                        itself at every new infection (bytes 54-864). 
Similarities........: LAMER EXTERMINATOR virus strain
--------------------- 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: without restrictions: CHECKVECTORS 2.2, 
                                                  VIRUSX 4.0
                            with restrictions:    GUARDIAN 1.2
Standard means......: CHECKVECTORS 2.2
--------------------- Acknowledgement --------------------------------
Location............: Virus Test Center, University Hamburg, Germany
Classification by...: Wolfram Schmidt
Documentation by....: Wolfram Schmidt
Date................: 15-July-1991
Information Source..: ---

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