This note appears to have been written by the author of the Unix virus, bliss. You might not again see so strong a user warning on a software package.
From: nobody@INTERNIC.NET To: email@example.com A few months back, a very alpha version of bliss got posted. That shouldn't have happened, but, it was pretty much ignored so I didn't worry about it. But now it seems there's a bit of a fuss about this. I'll post the current version, which I havn't really worked on in months. The original binary is now properly run. I had forgotten to check the path. This is a VIRUS. DO NOT RUN IT IF YOU DO NOT KNOW WHAT YOU ARE DOING. DO NOT ASSUME YOU ARE SAFE JUST BECAUSE YOU ARE NOT RUNNING AS ROOT. I have not tested this running free on a system. I tested it infecting a single directory, and I tested it pretending that it was infecting the whole filesystem. But I did not run these tests on the current version. In fact, I have run very few tests on the current version - there have been enough changes since the last tests I ran and last good look at the code I gave that I can not consider this anything more than an alpha version. I felt it important to release a believed-to-be working version though, since many people seem concerned about this program. Let me reiterate. THIS IS A VIRUS. IF YOU RUN THIS PROGRAM, YOU STAND A GOOD CHANCE OF FUCKING YOUR SYSTEM UP PRETTY BAD. This virus does some trivial worm things. Be careful. Oh, they are only slightly tested, and nowhere near complete (if you saw my todo list, it would give you nightmares). I have compiled this with debugging verbosity on. There are certain command-line arguments that do certain things. Bliss does nothing intentionally destructive. Bliss may well do accidentally destructive things. I have tried to be careful about errors and unlikely conditions causing problems, but this is a virus. And one that undergone some changes since it was last given any real testing. Bliss is not expected to survive in the wild. I have written this as proof that a unix virus is possible, and because it is a fun program. 9ae9f7da327953f9aa838b8bfc4ca855 Appended is a gzipped i386-linux-elf binary that has had each pair of bits swapped. Trivial to decode by anyone with programming knowledge, difficult otherwise. I don't want people trying to hold me responsible because they accidentally ran this. I would appreciate it if people not release the unscrambled copy or code to unscramble it. I rot13'd the uuencode output just to be cute. I should mention that nothing makes bliss linux-specific. It does take advantage of some linux features, but they are surrounded by #ifdef linux. Bliss compiles clean (but was not run) on sunos, solaris, and openbsd. I may release the source at some point. If there are any bugs noticed in this version, I'll release fixes, and maybe some minor new features, within a few days (after I run some proper tests).