Snort mailing list archives
Re: Osx.Trojan.OceanLotus variant
From: Phillip Lee <phillile () sourcefire com>
Date: Tue, 1 May 2018 10:13:19 -0400
Yaser, Thanks for your submission. We will review the rules and get back to you when they're finished. Regards, Phil Lee Cisco Talos
On May 1, 2018, at 9:12 AM, Y M via Snort-sigs <snort-sigs () lists snort org> wrote: Hi, Below rules are driven from the reference. No pcap is available, so testing was only done for syntax. # Date: 2018-04-28 # Title: New MacOS Backdoor Linked to OceanLotus Found # Reference: https://blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/ <https://blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/>, https://www.virustotal.com/#/file/673ee7a57ba3c5a2384aeb17a66058e59f0a4d0cddc4f01fe32f369f6a845c8f/behavior <https://www.virustotal.com/#/file/673ee7a57ba3c5a2384aeb17a66058e59f0a4d0cddc4f01fe32f369f6a845c8f/behavior> # Tests: syntax only # Hashes: 673ee7a57ba3c5a2384aeb17a66058e59f0a4d0cddc4f01fe32f369f6a845c8f, 4da8365241c6b028a13b82d852c4f0155eb3d902782c6a538ac007a44a7d61b4 alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Osx.Trojan.OceanLotus variant outbound connection"; flow:to_server,established; content:"POST"; http_method; content:"User-Agent: curl/"; fast_pattern:only; http_header; content:".js"; http_uri; pcre:"/\/[a-zA-Z0-9]{10,}\.js/U"; metadata:ruleset community, service http; reference:url,blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/ <http://blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/>; classtype:trojan-activity; sid:8000027; rev:1;) alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Osx.Trojan.OceanLotus variant outbound connection"; flow:to_server,established; content:"GET"; http_method; content:"User-Agent: curl/"; fast_pattern:only; http_header; content:"Cookie: m_pixel_ratio="; http_header; content:".css"; http_uri; content:!"Connection"; http_header; content:!"Content"; http_header; pcre:"/Cookie\x3a\x20m_pixel_ratio\x3d[a-f0-9]{32}\x3b/H"; metadata:ruleset community, service http; reference:url,blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/ <http://blog.trendmicro.com/trendlabs-security-intelligence/new-macos-backdoor-linked-to-oceanlotus-found/>; classtype:trojan-activity; sid:8000028; rev:1;) Thanks. YM _______________________________________________ Snort-sigs mailing list Snort-sigs () lists snort org <mailto:Snort-sigs () lists snort org> https://lists.snort.org/mailman/listinfo/snort-sigs <https://lists.snort.org/mailman/listinfo/snort-sigs> Please visit http://blog.snort.org <http://blog.snort.org/> for the latest news about Snort! Please follow these rules: https://snort.org/faq/what-is-the-mailing-list-etiquette <https://snort.org/faq/what-is-the-mailing-list-etiquette> Visit the Snort.org <http://snort.org/> to subscribe to the official Snort ruleset, make sure to stay up to date to catch the most <a href=" https://snort.org/downloads/#rule-downloads <https://snort.org/downloads/#rule-downloads>">emerging threats</a>!
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Current thread:
- Osx.Trojan.OceanLotus variant Y M via Snort-sigs (May 01)
- Re: Osx.Trojan.OceanLotus variant Phillip Lee (May 01)