Security Research Team fox-srt
fox-srt
/ juniper-cve-2015-7755.rules
Last active
August 23, 2016 15:52
Snort coverage for Juniper ScreenOS backdoor
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| # Signatures to detect successful abuse of the Juniper backdoor password over telnet. | |
| # Additionally a signature for detecting world reachable ScreenOS devices over SSH. | |
| alert tcp $HOME_NET 23 -> any any (msg:"FOX-SRT - Flowbit - Juniper ScreenOS telnet (noalert)"; flow:established,to_client; content:"Remote Management Console|0d0a|"; offset:0; depth:27; flowbits:set,fox.juniper.screenos; flowbits:noalert; reference:cve,2015-7755; reference:url,http://kb.juniper.net/JSA10713; classtype:policy-violation; sid:21001729; rev:2;) | |
| alert tcp any any -> $HOME_NET 23 (msg:"FOX-SRT - Backdoor - Juniper ScreenOS telnet backdoor password attempt"; flow:established,to_server; flowbits:isset,fox.juniper.screenos; flowbits:set,fox.juniper.screenos.password; content:"|3c3c3c20257328756e3d2725732729203d202575|"; offset:0; fast_pattern; classtype:attempted-admin; reference:cve,2015-7755; reference:url,http://kb.juniper.net/JSA10713; sid:21001730; rev:2;) | |
| alert tcp $HOME_NET 23 -> any any (msg:"FOX-SRT - Backdoor - Juniper Scr |
fox-srt
/ fox-srt-mwi.rules
Last active
April 11, 2017 10:12
Snort coverage for Microsoft Word Intruder
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| # Signatures for detecting Microsoft Word Intruder | |
| # https://www.fireeye.com/blog/threat-research/2015/04/a_new_word_document.html | |
| alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"FOX-SRT - Trojan - Microsoft Word Intruder payload request"; content:"GET"; depth:3; flowbits:set,mwi; content:!"Referer|3a| "; content:!"Cookie|3a| "; uricontent:"&act=1"; fast_pattern: only; pcre:"/\/webstat\/image\.php\?id=[0-9]{8}/"; threshold: type limit, track by_src, count 1, seconds 3600; classtype:trojan-activity; reference:url,https://www.fireeye.com/blog/threat-research/2015/04/a_new_word_document.html; sid:21001609; rev:1;) | |
| alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"FOX-SRT - Trojan - Microsoft Word Intruder payload response"; flowbits:isset,mwi; content:"Content-Type|3a| application/octet-stream"; content:"Content-Description|3a| File Transfer"; pcre:"/filename=[0-9]{8}\.exe/"; threshold: type limit, track by_src, count 1, seconds 3600; classtype:trojan-activity; reference:url,https://www.fir |
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