alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS Inbound JasperLoader? Using Array Push Obfuscation"; flow:established,from_server; content:"200"; http_stat_code; file_data; content:"|20|=|20|new|20|Array|28 29 3b|"; depth:50; content:".push|28 22|"; distance:0; pcre:"/^(?:\x22|[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?\.push\x28\x22)(?:\x22|[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)(?:[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)(?:[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)/Ri"; content:".push|28 22 22 29 0d 0a|"; fast_pattern; content:"eval|28|"; distance:0; metadata: former_category CURRENT_EVENTS; classtype:trojan-activity; sid:2027102; rev:4; metadata:attack_target Client_Endpoint, deployment Perimeter, tag Downloader, tag JavaScript?, signature_severity Major, created_at 2019_03_19, malware_family JasperLoader?, performance_impact Low, updated_at 2019_03_22;)

Added 2019-03-27 17:41:22 UTC


alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS Inbound JS Downloader Using Array Push Obfuscation"; flow:established,from_server; content:"200"; http_stat_code; file_data; content:"|20|=|20|new|20|Array|28 29 3b|"; depth:50; content:".push|28 22|"; distance:0; pcre:"/^(?:\x22|[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?\.push\x28\x22)(?:\x22|[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)(?:[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)(?:[\x20-\x7e]{0,70}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)/Ri"; content:".push|28 22 22 29 0d 0a|"; fast_pattern; content:"eval|28|"; distance:0; metadata: former_category CURRENT_EVENTS; classtype:trojan-activity; sid:2027102; rev:3; metadata:attack_target Client_Endpoint, deployment Perimeter, tag Downloader, tag JavaScript?, signature_severity Major, created_at 2019_03_19, performance_impact Low, updated_at 2019_03_22;)

Added 2019-03-22 19:11:28 UTC


alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS Inbound JS Downloader Using Array Push Obfuscation"; flow:established,from_server; content:"200"; http_stat_code; file_data; content:"|20|=|20|new|20|Array|28 29 3b|"; depth:50; content:".push|28 22|"; distance:0; pcre:"/^(?:\x22|[\x20-\x7e]{0,30}\x22)\x29\x3b\s*[^\.]+(?\.push\x28\x22)(?:\x22|[\x20-\x7e]{0,30}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)(?:[\x20-\x7e]{0,30}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)(?:[\x20-\x7e]{0,30}\x22)\x29\x3b\s*[^\.]+(?P=pushvar)/Ri"; content:".push|28 22 22 29 0d 0a|"; fast_pattern; content:"eval|28|"; distance:0; metadata: former_category CURRENT_EVENTS; classtype:trojan-activity; sid:2027102; rev:2; metadata:attack_target Client_Endpoint, deployment Perimeter, tag Downloader, tag JavaScript?, signature_severity Major, created_at 2019_03_19, performance_impact Low, updated_at 2019_03_20;)

Added 2019-03-20 18:56:34 UTC


Topic revision: r1 - 2019-03-27 - TWikiGuest
 
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