alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET TROJAN Possible Locky Ransomware Writing Encrypted File over - SMB and SMB-DS v1 ASCII"; flow:to_server,established; content:"|ff|SMB|a2|"; offset:4; depth:5; byte_test:1,!&,0x80,6,relative; content:".locky|00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022638; rev:1; metadata:attack_target Client_Endpoint, created_at 2016_03_23, deployment Perimeter, former_category MALWARE, signature_severity Major, tag Ransomware, updated_at 2016_03_23, 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 v1 ASCII"; flow:to_server,established; content:"|ff|SMB|a2|"; offset:4; depth:5; byte_test:1,!&,0x80,6,relative; content:".locky|00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022638; rev:1; metadata:created_at 2016_03_23, updated_at 2016_03_23;)

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 v1 ASCII"; flow:to_server,established; content:"|ff|SMB|a2|"; offset:4; depth:5; byte_test:1,!&,0x80,6,relative; content:".locky|00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022638; rev:1; metadata:created_at 2016_03_23, updated_at 2016_03_23;)

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 v1 ASCII"; flow:to_server,established; content:"|ff|SMB|a2|"; offset:4; depth:5; byte_test:1,!&,0x80,6,relative; content:".locky|00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2022638; rev:1;)

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


Topic revision: r1 - 2021-10-04 - TWikiGuest
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © Emerging Threats