alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ELF Linux/Dnsamp.AB Variant CnC"; flow:established,to_server; dsize:84; content:"|54|"; depth:1; content:"|11|"; distance:6; within:1; content:"|95 08 00 00 01 00 00 00|"; distance:68; within:8; fast_pattern; isdataat:!1,relative; reference:md5,b1fcab441a1221b33206924f12af64a0; reference:url,intezer.com/blog/ddos/chinaz-updates-toolkit-by-introducing-new-undetected-malware/; classtype:command-and-control; sid:2029839; rev:3; metadata:attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_12;)