AT related malicious URL (f003.backblazeb2.com/b2api/v1/b2_download_file_by_id?fileId=4_z7a04aa88cc33107c9fe20210_f1031843078dcf0f3_d20260516_m202449_c003_v0312024_t0024_u01778963089110)

SID: 6003734Rev: 10 views
Sourcejulioliraup/antiphishing
CreatedMay 22, 2026
UpdatedMay 22, 2026
Classificationsocial-engineering
alert http $HOME_NET any -> any any (msg:"AT related malicious URL (f003.backblazeb2.com/b2api/v1/b2_download_file_by_id?fileId=4_z7a04aa88cc33107c9fe20210_f1031843078dcf0f3_d20260516_m202449_c003_v0312024_t0024_u01778963089110)"; flow:established,to_server; http.uri; content:"/b2api/v1/b2_download_file_by_id?fileId=4_z7a04aa88cc33107c9fe20210_f1031843078dcf0f3_d20260516_m202449_c003_v0312024_t0024_u01778963089110"; startswith; fast_pattern; http.host; content:"f003.backblazeb2.com"; endswith; reference:url,openphish.com; reference:url,julioliraup.github.io/ET/signature.html?sid=6003734; classtype:social-engineering; sid:6003734; rev:1; metadata:signature_severity Major, created_et 2026_05_19;)

References

urlopenphish.com
urljulioliraup.github.io/ET/signature.html?sid=6003734

Metadata

signature severityMajor
created et2026_05_19

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