alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET TROJAN Possible Locky Ransomware Writing Encrypted File over - SMB and SMB-DS v2"; flow:to_server,established; content:"|FE|SMB|40 00|"; offset:4; depth:6; content:"|05 00|"; distance:6; within:2; content:"|00|.|00|l|00|o|00|c|00|k|00|y|00 00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022639; rev:5; metadata:attack_target Client_Endpoint, created_at 2016_03_23, deployment Perimeter, former_category MALWARE, signature_severity Major, tag Ransomware, updated_at 2017_01_10, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)

Added 2021-10-04 19:24:43 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET TROJAN Possible Locky Ransomware Writing Encrypted File over - SMB and SMB-DS v2"; flow:to_server,established; content:"|FE|SMB|40 00|"; offset:4; depth:6; content:"|05 00|"; distance:6; within:2; content:"|00|.|00|l|00|o|00|c|00|k|00|y|00 00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022639; rev:5; metadata:created_at 2016_03_23, updated_at 2017_01_10;)

Added 2018-09-13 19:52:24 UTC


Added 2018-09-13 18:00:49 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET TROJAN Possible Locky Ransomware Writing Encrypted File over - SMB and SMB-DS v2"; flow:to_server,established; content:"|FE|SMB|40 00|"; offset:4; depth:6; content:"|05 00|"; distance:6; within:2; content:"|00|.|00|l|00|o|00|c|00|k|00|y|00 00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022639; rev:5; metadata:created_at 2016_03_23, updated_at 2017_01_10;)

Added 2017-08-07 21:17:35 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET TROJAN Possible Locky Ransomware Writing Encrypted File over - SMB and SMB-DS v2"; flow:to_server,established; content:"|FE|SMB|40 00|"; offset:4; depth:6; content:"|05 00|"; distance:6; within:2; content:"|00|.|00|l|00|o|00|c|00|k|00|y|00 00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022639; rev:5;)

Added 2017-01-10 17:18:34 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET TROJAN Possible Locky Ransomware Writing Encrypted File over - SMB and SMB-DS v2"; flow:to_server,established; content:"|FE|SMB|40 00|"; offset:4; depth:6; content:"|05 00|"; distance:6; within:2; content:"|00|.|00|l|00|o|00|c|00|k|00|y|00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022639; rev:4;)

Added 2016-03-23 18:08:03 UTC


Topic revision: r1 - 2021-10-04 - TWikiGuest
 
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