alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET EXPLOIT Possible 2012-1533 altjvm RCE via JNLP command injection";
flow:established,from_server;
file_data;
content:"<jnlp"; nocase;
content:"initial-heap-size"; nocase;
content:"max-heap-size";
content:"-XXaltjvm"; nocase; fast_pattern;
reference:cve,2012-1533;
classtype:trojan-activity;
sid:2017013; rev:3;
metadata:created_at 2013_06_13, cve CVE_2012_1533, confidence Medium, signature_severity Major, updated_at 2019_10_08, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services;
)