Phases Computer_virus

1 phases

1.1 dormant phase
1.2 propagation phase
1.3 triggering phase
1.4 execution phase

phases

virus phases life cycle of computer virus, described using analogy biology. life cycle can divided 4 phases:

dormant phase

the virus program idle during stage. virus program has managed access target user s computer or software, during stage, virus not take action. virus activated trigger states event execute virus, such date, presence of program or file, capacity of disk exceeding limit or user taking action (e.g., double-clicking on icon, opening e-mail, etc.). not viruses have stage.

propagation phase

the virus starts propagating, multiplying , replicating itself. virus places copy of other programs or system areas on disk. copy may not identical propagating version; viruses morph or change evade detection professionals , anti-virus software. each infected program contain clone of virus, enter propagation phase.

triggering phase

a dormant virus moves phase when activated, , perform function intended. triggering phase can caused variety of system events, including count of number of times copy of virus has made copies of itself.

execution phase

this actual work of virus, payload released. can destructive such deleting files on disk, crashing system, or corrupting files or relatively harmless such popping humorous or political messages on screen.