AT related malicious URL (www.outlook-mailer.com/signin?t=eyJhbGciOiJIUzI1NiJ9.eyJ0cmFja2luZ190b2tlbiI6IjdhNmQ5MDcwLTY4ZWEtNGM0My05YjBkLTEyMGYxODY2MGQ4NCIsImNlbGwiOiJodHRwczovL3FnYmZ3b3c2MGYuZXhlY3V0ZS1hcGkudXMtd2VzdC0yLmFtYXpvbmF3cy5jb20vcHJvZC9hcGkvcGhpc2hpbmdjYW1wYWlnbiIsImNhbXBhaWduX3Rva2VuIjoiZDlmZGJmOWMtMmJlYi00YjNmLWJjNzgtZTdjODAwZDRiNDk3IiwidGVzdF90b2tlbiI6ZmFsc2UsImV4dGVybmFsX3RyYWluaW5nIjpmYWxzZSwiZGlyZWN0X2RlbGl2ZXJ5IjpmYWxzZSwiaWF0IjoxNzkzNjM0NTE1LCJpc3MiOiJodHRwczovL2FwcC5waGlzaHRocmVhdC5jb20iLCJleHAiOjE4MDE0MTA1MTV9.GCbfRMJELcVCuuNiflmDY85HCOQeaNmBQb5in6kTAXg)

SID: 6033932Rev: 1EnabledDerived3 views
Fileantiphishing.rules
CreatedNovember 3, 2026
UpdatedNovember 3, 2026
Classificationsocial-engineering
alert http $HOME_NET any -> any any (msg:"AT related malicious URL (www.outlook-mailer.com/signin?t=eyJhbGciOiJIUzI1NiJ9.eyJ0cmFja2luZ190b2tlbiI6IjdhNmQ5MDcwLTY4ZWEtNGM0My05YjBkLTEyMGYxODY2MGQ4NCIsImNlbGwiOiJodHRwczovL3FnYmZ3b3c2MGYuZXhlY3V0ZS1hcGkudXMtd2VzdC0yLmFtYXpvbmF3cy5jb20vcHJvZC9hcGkvcGhpc2hpbmdjYW1wYWlnbiIsImNhbXBhaWduX3Rva2VuIjoiZDlmZGJmOWMtMmJlYi00YjNmLWJjNzgtZTdjODAwZDRiNDk3IiwidGVzdF90b2tlbiI6ZmFsc2UsImV4dGVybmFsX3RyYWluaW5nIjpmYWxzZSwiZGlyZWN0X2RlbGl2ZXJ5IjpmYWxzZSwiaWF0IjoxNzkzNjM0NTE1LCJpc3MiOiJodHRwczovL2FwcC5waGlzaHRocmVhdC5jb20iLCJleHAiOjE4MDE0MTA1MTV9.GCbfRMJELcVCuuNiflmDY85HCOQeaNmBQb5in6kTAXg)"; flow:established,to_server; http.uri; content:"/signin?t=eyJhbGciOiJIUzI1NiJ9.eyJ0cmFja2luZ190b2tlbiI6IjdhNmQ5MDcwLTY4ZWEtNGM0My05YjBkLTEyMGYxODY2MGQ4NCIsImNlbGwiOiJodHRwczovL3FnYmZ3b3c2MGYuZXhlY3V0ZS1hcGkudXMtd2VzdC0yLmFtYXpvbmF3cy5jb20vcHJvZC9hcGkvcGhpc2hpbmdjYW1wYWlnbiIsImNhbXBhaWduX3Rva2VuIjoiZDlmZGJmOWMtMmJlYi00YjNmLWJjNzgtZTdjODAwZDRiNDk3IiwidGVzdF90b2tlbiI6ZmFsc2UsImV4dGVybmFsX3RyYWluaW5nIjpmYWxzZSwiZGlyZWN0X2RlbGl2ZXJ5IjpmYWxzZSwiaWF0IjoxNzkzNjM0NTE1LCJpc3MiOiJodHRwczovL2FwcC5waGlzaHRocmVhdC5jb20iLCJleHAiOjE4MDE0MTA1MTV9.GCbfRMJELcVCuuNiflmDY85HCOQeaNmBQb5in6kTAXg"; startswith; fast_pattern; http.host; content:"www.outlook-mailer.com"; endswith; reference:url,openphish.com; reference:url,julioliraup.github.io/AT/signature.html?sid=6033932; classtype:social-engineering; sid:6033932; rev:1; metadata:signature_severity Major, created_et 2026_11_03;)

References

urlopenphish.com
urljulioliraup.github.io/AT/signature.html?sid=6033932

Metadata

signature severityMajor
created et2026_11_03

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