alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE LNK/imageres CnC Payload Request (GET)"; flow:established,to_server; urilen:<30; http.method; content:"GET"; http.uri; content:"/file/t/"; startswith; fast_pattern; content:".exe"; endswith; http.header_names; bsize:22; content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; http.connection; bsize:10; content:"Keep-Alive"; reference:md5,105771e5392260bd10473b370322f106; reference:url,twitter.com/StopMalvertisin/status/1723310413541220372; classtype:trojan-activity; sid:2049285; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_22, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_03;)