alert udp $HOME_NET any -> $EXTERNAL_NET 53 (msg:"ET DNS Query for .su TLD (Soviet Union) Often Malware Related"; content:"|01 00 00 01 00 00 00 00 00 00|"; depth:10; offset:2; content:"|02|su|00|"; fast_pattern; distance:0; nocase; reference:url,www.abuse.ch/?p=3581; classtype:bad-unknown; sid:2014169; rev:1;)

Added 2015-12-11 18:32:51 UTC

Maybe it could be reasonable to exclude the most popular websites in .su domain by default? Here is statistics: https://domaintyper.com/top-websites/most-popular-websites-with-su-domain. I attached a file with listed websites.

-- VadymChakrian - 2017-06-30

It seems that next sites cause false positives: 1) adler.su 2) www.veloway.su 3) snar.su 4) olt.su 5) transmaster.su 6) rusvesna.su 7) www.znanie-sila.su 8) www.kuban.su

I shared only websites that are known by Google and checked them with virustotal. They seem to be clean.

-- VaC - 2017-06-30


alert udp $HOME_NET any -> $EXTERNAL_NET 53 (msg:"ET POLICY DNS Query for .su TLD (Soviet Union) Often Malware Related"; content:"|01 00 00 01 00 00 00 00 00 00|"; depth:10; offset:2; content:"|02|su|00|"; fast_pattern; distance:0; nocase; reference:url,www.abuse.ch/?p=3581; classtype:bad-unknown; sid:2014169; rev:1;)

Added 2015-12-08 00:05:58 UTC


alert udp $HOME_NET any -> $EXTERNAL_NET 53 (msg:"ET POLICY DNS Query for .su TLD (Soviet Union) Often Malware Related"; content:"|01 00 00 01 00 00 00 00 00 00|"; depth:10; offset:2; content:"|02|su|00|"; fast_pattern; distance:0; nocase; reference:url,www.abuse.ch/?p=3581; classtype:trojan-activity; sid:2014169; rev:1;)

Added 2012-01-30 23:37:11 UTC


Topic attachments
I Attachment Action Size Date Who Comment
Texttxt most_popular_.su_domains.txt manage 11.7 K 2017-06-30 - 12:05 VadymChakrian Popular domains in .su zone
Topic revision: r3 - 2017-06-30 - VaC
 
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