In some cases the virus can corrupt host programs. The virus has a bug and it does not supply command line options to the host program correctly, so every program that operates with command line parameters will work incorrectly after infection. When internal counters of the virus reach certain values, the virus displays a message on the screen. Most of this message is taken from lyrics of the song 'Aenema' by the band called 'Tool'. We will not reproduce the message here as the song seriously needs the Parental Advisory sticker for explicit lyrics.
People cry and people moan.
And indeed, the virus has corrupted files on the hard drive during this event. The Irok virus-worm will not spread itself via Outlook if Windows Scripting Host is not installed on the infected system. Regardless of software installed, the worm will infect COM and EXE files on the system it infects.