[Snort-users] MISC IP Reserved bit set

Frontgate Lab mdiwan at ...200...
Fri Oct 12 08:46:06 EDT 2001

Yes i did download rules from snort.org  BUT.. why would that trigger
the readme.eml content alert?

[root at ...3795... snort]# cat web-misc.rules | grep readme.eml
alert tcp $EXTERNAL_NET 80 -> $HOME_NET any (msg:"WEB-MISC readme.eml
autoload attempt"; flags:A+; content:"window.open(\"readme.eml\"";
nocase; classtype:attempted-user; sid:1290; rev:3;
alert tcp $EXTERNAL_NET 80 -> $HOME_NET any (msg:"WEB-MISC readme.eml
attempt"; flags:A+; uricontent:"readme.eml"; nocase;
classtype:attempted-user; sid:1284; rev:3;


Matthew Collins wrote:
> Look at the source port. 80 -> YourIP:35434.
> Been downloading some rules from the snort web site?
> >>> "Frontgate Lab" <mdiwan at ...200...> 12/10/01 16:02:13 >>>
> Hiya .. errm.. i think this is bad... i belive it is nimda:
> Oct 11 11:48:35 fglab snort[4483]: [1:1284:3] WEB-MISC readme.eml
> attempt [Classification: Attempted User Privilege Gain] [Priority: 8]:
> {TCP} ->
> nslookup results:
>  nslookup
> Note:  nslookup is deprecated and may be removed from future releases.
> Consider using the `dig' or `host' programs instead.  Run nslookup with
> the `-sil[ent]' option to prevent this message from appearing.
> Server:
> Address:
> Non-authoritative answer:
>    name = snort.sourcefire.com.
> Authoritative answers can be found from:
>    nameserver = ns1.sourcefire.com.
>    nameserver = ns2.sourcefire.com.
> ns1.sourcefire.com      internet address =
> ns2.sourcefire.com      internet address =
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