It is not a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. The virus does not infects the files: COMMAND, WIN and F-PROT. On 1st of January and June the virus displays:
--- +--+ ---+ ---+ ---+ +--+ +--+
¦ ¦ ¦ ¦- ¦- ¦--+ ¦ ¦ ¦ ¦
--- - - - ---+ - - - - +--+
Inferno Virus (c) 1996 T-Rex
It also contains the text strings:
* Inferno is unleashedall Goodluck !
The Inferno Virus : 1800 Bytes of Sheer Magic From T-Rex