alert http any any -> $HOME_NET any (msg:"ET INFO SonicWall SMA Multiple CIFS Server Bookmark Creation"; flow:established,to_server; flowbits:set,ET.SW.Bookmark; http.method; content:"POST"; http.uri; content:"/cgi-bin/editBookmark|3f|"; fast_pattern; http.request_body; content:"bmName|3d|"; pcre:"/^[^\x26]{64,}/R"; content:"service|3d|CIFS"; threshold:type threshold, seconds 30, count 5, track by_src; reference:url,www.nccgroup.com/us/research-blog/technical-advisory-sonicwall-sma-100-series-heap-based-buffer-overflow-cve-2021-20043/; classtype:misc-activity; sid:2061728; rev:2; metadata:affected_product SonicWall, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_18, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Informational, updated_at 2026_01_20; target:dest_ip;)