alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:established,to_server; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:md5,ba45339da92ca4622b472ac458f4c8f2; reference:url,intelreport.mandiant.com/; classtype:trojan-activity; sid:2016460; rev:8; metadata:created_at 2011_10_06, former_category MALWARE, updated_at 2022_05_03;)

Added 2022-05-03 18:06:37 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:md5,ba45339da92ca4622b472ac458f4c8f2; reference:url,intelreport.mandiant.com/; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, former_category MALWARE, updated_at 2020_04_29;)

Added 2021-09-13 18:07:04 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, former_category MALWARE, updated_at 2020_04_29;)

Added 2020-08-05 19:08:52 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; metadata: former_category MALWARE; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, updated_at 2020_04_29;)

Added 2020-04-30 19:07:46 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; metadata: former_category MALWARE; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, updated_at 2020_04_29;)

Added 2020-04-29 19:34:23 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; metadata: former_category MALWARE; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, updated_at 2011_10_06;)

Added 2019-09-19 19:25:54 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, updated_at 2011_10_06;)

Added 2018-09-13 19:46:26 UTC

Added 2018-09-13 17:57:22 UTC

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?ID=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla"; http_header; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7; metadata:created_at 2011_10_06, updated_at 2011_10_06;)

Added 2017-08-07 21:10:11 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?INDEX=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla "; http_header; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5,8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:8;)

Added 2014-03-24 20:26:48 UTC

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN WEBC2-CSON Checkin - APT1 Related"; flow:to_server,established; content:"/Default.aspx?INDEX="; http_uri; pcre:"/\?INDEX=[A-Z]{10}$/U"; content:!"User-Agent|3a| Mozilla "; http_header; reference:url,www.threatexpert.com/report.aspx?md5=ba45339da92ca4622b472ac458f4c8f2; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=TrojanDownloader%3AWin32%2FSmall.XR; reference:url,intelreport.mandiant.com/; reference:md5, 8dd6a7fe83bd9682187d956f160ffb47; classtype:trojan-activity; sid:2016460; rev:7;)

Added 2013-02-22 01:37:14 UTC