I feel like we're in some sort of arms race against these virus writters.

Since there's no attachment involved in the newest Bagle variants, aside
from a somewhat unique OBJECT tag in the e-mail, I wrote a Regex scanner for
QSQ thats similar to the File Format Scanner I put out last month.  Same
rules apply: if it breaks, sorry.  Simply cat the appropriate version (yes I
made 2 - one for v1.16 and earlier, and one for v1.20 and later) to the
qmail-scanner-queue.pl file (make a backup first!) and add "regex_scanner"
to the the @scanners array:

# cp /var/qmail/bin/qmail-scanner-queue.pl
/var/qmail/bin/qmail-scanner-queue.pl.bak
# cat regex_scanner-116.pl >> /var/qmail/bin/qmail-scanner-queue.pl
: edit /var/qmail/bin/qmail-scanner-queue.pl

my @scanner_array=("regex_scanner", "fileformat_scanner", ...etc.etc.);

You may be thinking to yourself: "self, this looks kinda like the FFS".
Well thats because it basically is the same thing, only set for regex
scanning of every file.  Probably a bit inefficient to scan everything, so
if anyone wants to take it upon themselves to fix that, be my guest.

The current regex pattern that is included is:
(?i)\<OBJECT STYLE=\"display:none\".*DATA=\"http://.*:81/.*\"\>

The (?i) is to turn off case-sensitivity.  To add a new rule, to block all
OBJECT tags for instance:

Change:
@FORMATS = (
  { Name => "W32/Bagle-Q/R(regex)",
    Data => "(?i)\<OBJECT
STYLE=\"display:none\".*DATA=\"http://.*:81/.*\"\>"}
  );
@FORMATS = (
  { Name => "W32/Bagle-Q/R(regex)",
    Data => "(?i)\<OBJECT
STYLE=\"display:none\".*DATA=\"http://.*:81/.*\"\>"},
  { Name => "OBJECT tags not allowed",
    Data => "(?i)\<OBJECT.*>"}
  );

Enjoy, and if you have problems, you know where to find me (hiding under
yonder large boulder).

John Narron            | "Sacrifice, they always say
Network Administration |  Is a sign of nobility
CDS/CDSinet, LLC       |  But where does one draw the line
http://www.cdsinet.net |  In the face of injury?"
(660) 886 4045         |     - Queensryche

Attachment: regex_scanner-120.pl
Description: Perl program

Attachment: regex_scanner-116.pl
Description: Perl program

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