alert tls $HOME_NET any -> any any (msg:"🐾 - 🚨 Possible BITSAdmin TLSv1.2 connection to FQDN - T1105"; flow:to_server, stateless; ja3.hash; content:"0ffee3ba8e615ad22535e7f771690a28"; fast_pattern; tls_sni; content:!"mozilla.com"; endswith; nocase; content:!"mozilla.org"; endswith; nocase; content:!"thunderbird.net"; endswith; nocase; content:!"gvt1.com"; endswith; nocase; reference:url,https://www.rapid7.com/blog/post/2023/01/11/increasing-the-sting-of-hive-ransomware/; reference:url,https://learn.microsoft.com/en-us/windows/win32/bits/bitsadmin-tool; reference:url,https://lolbas-project.github.io/lolbas/Binaries/Bitsadmin/#download; target:src_ip; metadata:attack_target Client_and_Server, signature_severity Major, affected_product Windows_XP_Vista_7_8_10_11_Server_32_64_Bit, mitre_tactic_id TA0011, mitre_tactic_name Command_and_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer, created_at 2023_04_12, updated_at 2024_07_30; sid:3300207; rev:6; classtype:policy-violation;)