[Snort-users] Unknown ClassType: trojan-activity

Joel Esler jesler at ...1935...
Mon Jan 14 16:51:34 EST 2013

Looks like your classification.config file may be missing or out of date.

That being said, am I reading this right that you are running Snort 2.9.1 with a Snort ruleset?

Joel Esler
Senior Research Engineer, VRT
OpenSource Community Manager

On Jan 14, 2013, at 4:08 PM, "Smith, Edward" <esmith at ...15250...> wrote:

> Hello,
> I have been looking around and have not found anything that seems to answer this, so sorry if this has been addressed.
> I am upgrading from snort 2.9.0 to 2.9.1, which I figured would be rather trivial.  However, I also upgraded to the newest ruleset 2905 to 2940 and I am getting the following error:
> Reputation config:
>     WARNING: Can't find any whitelist/blacklist entries. Reputation Preprocessor disabled
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> Initializing rule chains...
> ERROR: /etc/snort/rules/blacklist.rules(318) Unknown ClassType: trojan-activity
> Fatal Error, Quitting..
> Here is the offending entry, but this is the same error for every  trojan-activity error.
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"BLACKLIST User-Agent known malicious User-Agent ErrCode - W32/Fujacks.htm"; flow:established,to_server; content:"User-Agent|3A| ErrCode"; fast_pattern:only; nocase; http_header; metadata:policy balanced-ips drop, policy security-ips drop, service http; reference:url,www.mcafee.com/threat-intelligence/malware/default.aspx?id=141161; reference:url,www.virustotal.com/latest-report.html?resource=f9dc0803ea4634256eae73b2db61a3c5; classtype:trojan-activity; sid:18247; rev:4;)
> Strange thing is that I am using the same entries in my blacklist as before, and those worked fine with trojan-activity.  Is there something that has disabled my ability to check for these kinds of attacks?   Any help here is appreciated.
> Ed Smith
> esmith at ...15250...
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