nemossan@uitec.ac.jp (Sakurao NEMOTO) (04/24/91)
In article <1991Apr24.030220.15637@agate.berkeley.edu> c60b-1eq@e260-1g.berkeley.edu (Noam Mendelson) writes: >In article <1991Apr23.113026.2657@unlinfo.unl.edu> riddle@hoss.unl.edu (Michael H. Riddle) writes: >>McAfee has identified over 501 virus strains now known for MS-DOS. Am I >>the only one who is concerned about infection potential in SFX.EXE-type >>files? >--------- abbreviated --------- >The newer versions of LHa and PKZIP can extract their SFX files. I.e., >if you get lha212.exe and want to unpack it using an LHa.exe you already >have, just do 'lha x lha212.exe'. >This works around the very important virus problem that you mentioned. >No matter how reliable the source, a hacker can always seed it with a virus. >Better to be safe than sorry. Further you can *test* newly arrived LHA-selfextracted file using older LHA.EXE program. Try C:>LHA T lha212.exe | | | | | +--------- Newly arrived selfextract file | +-------------- specify to TEST +----------------- older executable file of LHA If the newly arrived selfextract-LHA is from Yoshi, you will see "This is original from Yoshi."-message. Fortunately, I have no experience stated another message, but when I tested one version of LHA212.COM (original is .EXE), the above message didn't not appear, thus I've trushed the file. :-) (Wed) Apr 24 14:58 JST(+0900) 1991 nemossan@uitec.ac.jp