alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MEME#4CHAN Redirect Activity to Payload"; flow:established,to_server; http.uri; content:"/atom.xml"; endswith; fast_pattern; http.user_agent; content:"Microsoft Office"; startswith; http.header_names; content:!"Referer|0d 0a|"; http.host; content:".blogspot.com"; endswith; reference:url,securonix.com/blog/securonix-threat-labs-security-meme4chan-advisory/; reference:md5,df7148650d18ee87e9abe3abaa51e650; classtype:trojan-activity; sid:2046157; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_07, deployment Perimeter, malware_family Xworm, confidence High, signature_severity Major, tag MEME_4CHAN, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_06_07;)