On 6 Apr 97 08:54am, Kurt Wismer wrote to Paul Walker:
 -=>> Mocking Paul to Andreas <=-
 KW>   (Mock, mOck, moCk, mocK)
 AM>> And what's about companion viruses? It is as easy as writing
 PW>> Not really - for starters, I don't know of a pascal compiler that
 PW>> creates  com files. If you don't have one of those, you have to write a
 PW>> virus which  drops a .COM file which contains a fully working version
 PW>> of the virus.
 PW>> Not impossible, but certainly more hassle than it's worth. Gimme
 PW>> assembler  any day.
 KW> paul, did you consider the possibility of writing it as an exe file and
 KW> then simply renaming to a com extension?... companion viruses work
 KW> because dos sees them in the directory as com files, i don't think they
 KW> actually need to be com files internally...
You are right, I read in F-Prot that EXEs could be renamed to COMs and they
would still work. I read this while reading a virus description and it said
that this virus was set to only infect COMs and couldn't infect EXEs, so a
EXE that was renamed to a COM would destroy the file, or something like that.
Anyway, it is possible.
BRANDON PILKINGTON
... STAR WARS FIDONET ECHO...Obi Wan was wise to hide you from us...
 * Evaluation copy of Silver Xpress. Day # 199
 * Silver Xpress V4.01
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