W32/Qizy.A

description-logoAnalysis

  • Virus is 32 bit with a compressed file size of 32,768 bytes
  • Virus was written in Visual C++ and contains an embedded VBScript component that contains instructions to send the virus using Outlook to the first 666 contacts in the Outlook address book
  • The VBScript component attempts to compose an email in this format and send it to others -

    Subject = "Merry Christmas!"
    Body =
    "You've probably received enough e-cards. Here's a nice Christmas screensaver instead :)"
    Attachments = "xmas.scr"

  • If the virus is run, it will extract the VBScript component, run it, then remove it from the hard drive

  • The virus will then begin searching for target executables to infect - if a suitable file is found, the virus will prepend itself to that file, increasing the file size by 32,768 bytes

recommended-action-logoRecommended Action

  • Enable blocking of files with the extension .SCR via SMTP, POP and HTML protocol

Telemetry logoTelemetry

Detection Availability

FortiClient
Extreme
FortiMail
Extreme
FortiSandbox
Extreme
FortiWeb
Extreme
Web Application Firewall
Extreme
FortiIsolator
Extreme
FortiDeceptor
Extreme
FortiEDR