After infecting a machine and waiting for some time, the virus sends a
"ping" to four IP addresses located in New Zealand to announce which
machines it has infected. After this, the infected machines open up
port 531 for incoming connections, and the machines can be controlled
by sending commands to this port.
There are several variants. The first 60416 byte variant contains
mylen=, c:\testexe.exe, NOTEPADX.EXE, NOTEPAD.EXE, SETUP.EXE,
EXPLORE.EXE, EXPLORER.EXE, WINIPX.EXE, WINIPXA.EXE,
WINSRVC.EXE, E5.2, DEBUG, IMPL=
When the virus is active, it is visible in the process list as a number,
typicly "6.666". When exiting Windows, NT sometimes complains
it can't close a task by this name.
SemiSoft was known to be in the wild in the end of 1997 and beginning