[9fans] pipeto for mydoom virus

[9fans] pipeto for mydoom virus

[steve-simon]

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Hi,

A pipeto clause to strip the mydoom virus.

Add rot13 to /386/bin (attached) and the below to your pipeto

if ( test -f $D/2/body && ! ~ `{unzip -sc < $D/2/body | rot13 | grep 'Version\\Explorer'} '' ){
	log virus $RECIP From `{cat $D/replyto}
	exit 0
}

-Steve

[-- Attachment #2: rot13.c --]
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#include <u.h>
#include <ctype.h>
#include <libc.h>
#include <bio.h>

Biobuf bin, bout;

int main()
{
	long got;
	char buf[1024], *p;

	Binit(&bin, 0, OREAD);
	Binit(&bout, 1, OWRITE);

	while((got = Bread(&bin, buf, sizeof(buf))) > 0){
		for (p = buf; p < buf + got; p++)
			if (isalpha(*p))
				if (tolower(*p) <= 'm')
					*p += 13;
				else
					*p -= 13;
		Bwrite(&bout, buf, got);
	}
	Bterm(&bout);
}

Re: [9fans] pipeto for mydoom virus

[Matthias Teege]

> if ( test -f $D/2/body && ! ~ `{unzip -sc < $D/2/body | rot13 | grep 'Version\\Explorer'} '' ){
> 	log virus $RECIP From `{cat $D/replyto}
> 	exit 0
> }

Where comes the log command from? I cant find
this?

Matthias

Re: [9fans] pipeto for mydoom virus

[Richard Miller]

> A pipeto clause to strip the mydoom virus.

Wouldn't it be better if the 9fans list server didn't forward the things
in the first place?  An ounce of prevention ...

Re: [9fans] pipeto for mydoom virus

[Scott Schwartz]

| Wouldn't it be better if the 9fans list server didn't forward the things
| in the first place?  An ounce of prevention ...

It's not supposed to!  We supposedly have spamassassin and other stuff
on the job.

Re: [9fans] pipeto for mydoom virus

[a]

// An ounce of prevention ...

yes, but i have a plan9 mail server with at least an occasional
windows user pulling from it. i'd like to get a server-wide
filter in.

but then, i've got one such user only, and i can't really be
bothered protecting windows anyway...
ア