W97M/Marker.BN

description-logoAnalysis

  • Virus consists of one macro module within the class storage
  • Virus hooks Word event handlers which prevents the closing of infected documents
  • Polymorphic by inserting unique user information as comment lines at beginning of virus code
  • Attempts to create 999,999,991 infected documents in the Windows folder named AA1AA.doc, AA2AA.doc, AA3AA.doc, AA4AA.doc and so on during the months of July through December if the year is after 1999
  • Virus searches the macro storage of host files for the string
    "la macro de Colombia"
    which exists in the virus body, as a means to determine if the host file is already infected

Telemetry logoTelemetry