Xref: utzoo comp.binaries.ibm.pc.d:6410 comp.sys.ibm.pc:44000 alt.msdos.programmer:1186
Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!utoday!greenber
From: greenber@utoday.UUCP (Ross M. Greenberg)
Newsgroups: comp.binaries.ibm.pc.d,comp.sys.ibm.pc,alt.msdos.programmer
Subject: Re: Virus Warning and Questions
Message-ID: <1214@utoday.UUCP>
Date: 9 Feb 90 01:37:56 GMT
References: <16609@boulder.Colorado.EDU>
Reply-To: greenber@utoday.UUCP (Ross M. Greenberg)
Organization: UNIX Today!, Manhasset, NY
Lines: 18

Looks like you have the so-called "PLO" or "Israeli/Firday 13th/Black Hole"
virus.  Not too serious.  It doesn;t cause much damage, except some EXE's
will no longer be executable -- on Friday the 13th, it erases any file you
try to run on an infected machine.

Best bet:  reboot on a clean, wrtite protected floppy.  Look for "sUMsDos"
as you've found, delete the file and replace from your backups.  Running
an infected program infects your machine until you power down...

Ross M. Greenberg
Author, FLU_SHOT+ 


-- 
Ross M. Greenberg, Technology Editor, UNIX Today!   greenber@utoday.UUCP
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