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[ZSCALER] Trojan Downloader User-Agent (Tiny)

[ZSCALER] Trojan Downloader User-Agent (Tiny)

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Detection Logic

alert any $HOME_NET any -> $EXTERNAL_NET any (msg:"[ZSCALER] Trojan Downloader User-Agent (Tiny)"; content:"requestClientApplication
| 3d
| tiny
| 0D 0A
| "; parse_src_ip: 2; parse_dst_ip: 1; program: CEF; content: "Zscaler"; content:"act=Allowed"; default_dst_port: $HTTP_PORT; default_proto: tcp; xbits: set,exploit_attempt,track ip_src, expire 86400; classtype:trojan-activity; sid:5003178; rev:3; metadata: mitre_technique_id T1043, mitre_technique_id T1105;)

Field Validations

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