alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:5; metadata:attack_target Client_Endpoint, created_at 2015_06_16, deployment Perimeter, former_category MALWARE, signature_severity Major, tag c2, updated_at 2020_10_06, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

Added 2021-06-18 18:19:27 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:5; metadata:created_at 2015_06_16, former_category MALWARE, updated_at 2020_10_06;)

Added 2020-10-06 19:21:32 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:5; metadata:created_at 2015_06_16, former_category MALWARE, updated_at 2019_10_07;)

Added 2020-08-05 19:11:19 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; metadata: former_category MALWARE; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:5; metadata:created_at 2015_06_16, updated_at 2019_10_07;)

Added 2019-10-08 19:34:29 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; metadata: former_category MALWARE; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:4; metadata:created_at 2015_06_16, updated_at 2015_06_16;)

Added 2019-09-19 19:26:24 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:4; metadata:created_at 2015_06_16, updated_at 2015_06_16;)

Added 2018-09-13 19:51:20 UTC


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


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:4; metadata:created_at 2015_06_16, updated_at 2015_06_16;)

Added 2017-08-07 21:15:57 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:4;)

Added 2016-03-30 20:28:25 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:4;)

Added 2016-03-30 20:14:36 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; content:!"Host|3 a20|www.youdao.com"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:4;)

Added 2016-03-30 18:23:30 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; pcre:"/\/\d{8,10}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:3;)

Added 2015-06-18 18:49:53 UTC


alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Backdoor.Elise CnC? Beacon 2"; flow:to_server,established; content:"POST"; http_method; content:".html"; nocase; http_uri; fast_pattern:only; content:!"Content-Type|3a|"; http_header; content:!"Accept-"; http_header; content:!"Referer|3a|"; http_header; content:"Content-Length|3a 20|0|0d 0a|"; http_header; pcre:"/\/\d{8}\.html$/Ui"; reference:md5,cfa7954722d4277d26e96edc3289a4ce; reference:url,github.com/pan-unit42/iocs/tree/master/lotusblossom; classtype:trojan-activity; sid:2021276; rev:2;)

Added 2015-06-16 16:47:42 UTC


Topic revision: r1 - 2021-06-18 - TWikiGuest
 
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