Angel is a non-memory resident parasitic virus. It searches for .COM files and writes itself into the end of the file.
On November 29th it displays the following message in Russian.
Первый ангел вострубил, и сделались град и огонь, смешанные с кровью, и пали на землю; и третья часть деревьев сгорела, и вся трава зел0ная сгорела.
In English, this roughly translates to:
The first Angel sounded... And fire mingled with blood hailed from the sky and fell to the ground - And the trees were burnt up, and the grass was burnt away. -Zel0naya