alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
msg:"ET EXPLOIT Tenda OS Command Injection (CVE-2020-10987) (GET)";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"goform/setUsbUnload"; nocase; fast_pattern;
content:"deviceName="; nocase; distance:0;
content:"|3b|"; distance:0;
pcre:"/deviceName=[^&$]+\x3b/";
reference:url,cybersecurity.att.com/blogs/labs-research/att-alien-labs-finds-new-golang-malwarebotenago-targeting-millions-of-routers-and-iot-devices-with-more-than-30-exploits;
reference:cve,2020-10987;
classtype:attempted-admin;
sid:2034489; rev:3;
metadata:attack_target Server, created_at 2021_11_17, cve CVE_2020_10987, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2023_02_04, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)