#alert tcp $HOME_NET 1024:65535 -> $EXTERNAL_NET [!37018,!37039,1024:65535] (msg:"ET DELETED Possible NanoCore? C2 64B"; flow:established,to_server; dsize:68; content:"|40 00 00 00|"; depth:5; pcre:"/^(?!.{0,63}\x00.{0,62}\x00.{0,61}\x00.{0,60}\x00)(?!.{0,62}\x00{2})(?!.{0,59}[A-Za-z0-9]{5})(?!(?P.).{0,63}(?P=b1).{0,62}(?P=b1).{0,61}(?P=b1).{0,60}(?P=b1))(?!.(?P.).{0,62}(?P=b2).{0,61}(?P=b2).{0,60}(?P=b2).{0,59}(?P=b2))(?!..(?P.).{0,61}(?P=b3).{0,60}(?P=b3).{0,59}(?P=b3).{0,58}(?P=b3))(?!...(?P.).{0,60}(?P=b4).{0,59}(?P=b4).{0,58}(?P=b4).{0,57}(?P=b4))(?!....(?P.).{0,59}(?P=b5).{0,58}(?P=b5).{0,57}(?P=b5).{0,56}(?P=b5))(?!.....(?P.).{0,58}(?P=b6).{0,57}(?P=b6).{0,56}(?P=b6).{0,55}(?P=b6))(?!......(?P.).{0,57}(?P=b7).{0,56}(?P=b7).{0,55}(?P=b7).{0,54}(?P=b7))(?!.......(?P.).{0,56}(?P=b8).{0,55}(?P=b8).{0,54}(?P=b8).{0,53}(?P=b8))(?!........(?P.).{0,55}(?P=b9).{0,54}(?P=b9).{0,53}(?P=b9).{0,52}(?P=b9))(?!.........(?P.).{0,54}(?P=b10).{0,53}(?P=b10).{0,52}(?P=b10).{0,51}(?P=b10))/Rs"; classtype:trojan-activity; sid:2025018; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_11_22, deployment Perimeter, former_category MALWARE, malware_family NanoCore?, tag Nanocore, updated_at 2019_10_04;)

Added 2022-05-19 19:06:45 UTC


#alert tcp $HOME_NET 1024:65535 -> $EXTERNAL_NET [!37018,!37039,1024:65535] (msg:"ET DELETED Possible NanoCore? C2 64B"; flow:established,to_server; dsize:68; content:"|40 00 00 00|"; depth:5; pcre:"/^(?!.{0,63}\x00.{0,62}\x00.{0,61}\x00.{0,60}\x00)(?!.{0,62}\x00{2})(?!.{0,59}[A-Za-z0-9]{5})(?!(?P.).{0,63}(?P=b1).{0,62}(?P=b1).{0,61}(?P=b1).{0,60}(?P=b1))(?!.(?P.).{0,62}(?P=b2).{0,61}(?P=b2).{0,60}(?P=b2).{0,59}(?P=b2))(?!..(?P.).{0,61}(?P=b3).{0,60}(?P=b3).{0,59}(?P=b3).{0,58}(?P=b3))(?!...(?P.).{0,60}(?P=b4).{0,59}(?P=b4).{0,58}(?P=b4).{0,57}(?P=b4))(?!....(?P.).{0,59}(?P=b5).{0,58}(?P=b5).{0,57}(?P=b5).{0,56}(?P=b5))(?!.....(?P.).{0,58}(?P=b6).{0,57}(?P=b6).{0,56}(?P=b6).{0,55}(?P=b6))(?!......(?P.).{0,57}(?P=b7).{0,56}(?P=b7).{0,55}(?P=b7).{0,54}(?P=b7))(?!.......(?P.).{0,56}(?P=b8).{0,55}(?P=b8).{0,54}(?P=b8).{0,53}(?P=b8))(?!........(?P.).{0,55}(?P=b9).{0,54}(?P=b9).{0,53}(?P=b9).{0,52}(?P=b9))(?!.........(?P.).{0,54}(?P=b10).{0,53}(?P=b10).{0,52}(?P=b10).{0,51}(?P=b10))/Rs"; classtype:trojan-activity; sid:2025018; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_11_22, deployment Perimeter, former_category MALWARE, malware_family NanoCore?, tag Nanocore, updated_at 2019_10_04;)

Added 2020-08-05 19:14:10 UTC


#alert tcp $HOME_NET 1024:65535 -> $EXTERNAL_NET [!37018,!37039,1024:65535] (msg:"ET DELETED Possible NanoCore? C2 64B"; flow:established,to_server; dsize:68; content:"|40 00 00 00|"; depth:5; pcre:"/^(?!.{0,63}\x00.{0,62}\x00.{0,61}\x00.{0,60}\x00)(?!.{0,62}\x00{2})(?!.{0,59}[A-Za-z0-9]{5})(?!(?P.).{0,63}(?P=b1).{0,62}(?P=b1).{0,61}(?P=b1).{0,60}(?P=b1))(?!.(?P.).{0,62}(?P=b2).{0,61}(?P=b2).{0,60}(?P=b2).{0,59}(?P=b2))(?!..(?P.).{0,61}(?P=b3).{0,60}(?P=b3).{0,59}(?P=b3).{0,58}(?P=b3))(?!...(?P.).{0,60}(?P=b4).{0,59}(?P=b4).{0,58}(?P=b4).{0,57}(?P=b4))(?!....(?P.).{0,59}(?P=b5).{0,58}(?P=b5).{0,57}(?P=b5).{0,56}(?P=b5))(?!.....(?P.).{0,58}(?P=b6).{0,57}(?P=b6).{0,56}(?P=b6).{0,55}(?P=b6))(?!......(?P.).{0,57}(?P=b7).{0,56}(?P=b7).{0,55}(?P=b7).{0,54}(?P=b7))(?!.......(?P.).{0,56}(?P=b8).{0,55}(?P=b8).{0,54}(?P=b8).{0,53}(?P=b8))(?!........(?P.).{0,55}(?P=b9).{0,54}(?P=b9).{0,53}(?P=b9).{0,52}(?P=b9))(?!.........(?P.).{0,54}(?P=b10).{0,53}(?P=b10).{0,52}(?P=b10).{0,51}(?P=b10))/Rs"; metadata: former_category MALWARE; classtype:trojan-activity; sid:2025018; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Nanocore, created_at 2017_11_22, malware_family NanoCore?, updated_at 2019_10_04;)

Added 2019-10-04 19:34:16 UTC


alert tcp $HOME_NET 1024:65535 -> $EXTERNAL_NET [!37018,!37039,1024:65535] (msg:"ET TROJAN Possible NanoCore? C2 64B"; flow:established,to_server; dsize:68; content:"|40 00 00 00|"; depth:5; pcre:"/^(?!.{0,63}\x00.{0,62}\x00.{0,61}\x00.{0,60}\x00)(?!.{0,62}\x00{2})(?!.{0,59}[A-Za-z0-9]{5})(?!(?P.).{0,63}(?P=b1).{0,62}(?P=b1).{0,61}(?P=b1).{0,60}(?P=b1))(?!.(?P.).{0,62}(?P=b2).{0,61}(?P=b2).{0,60}(?P=b2).{0,59}(?P=b2))(?!..(?P.).{0,61}(?P=b3).{0,60}(?P=b3).{0,59}(?P=b3).{0,58}(?P=b3))(?!...(?P.).{0,60}(?P=b4).{0,59}(?P=b4).{0,58}(?P=b4).{0,57}(?P=b4))(?!....(?P.).{0,59}(?P=b5).{0,58}(?P=b5).{0,57}(?P=b5).{0,56}(?P=b5))(?!.....(?P.).{0,58}(?P=b6).{0,57}(?P=b6).{0,56}(?P=b6).{0,55}(?P=b6))(?!......(?P.).{0,57}(?P=b7).{0,56}(?P=b7).{0,55}(?P=b7).{0,54}(?P=b7))(?!.......(?P.).{0,56}(?P=b8).{0,55}(?P=b8).{0,54}(?P=b8).{0,53}(?P=b8))(?!........(?P.).{0,55}(?P=b9).{0,54}(?P=b9).{0,53}(?P=b9).{0,52}(?P=b9))(?!.........(?P.).{0,54}(?P=b10).{0,53}(?P=b10).{0,52}(?P=b10).{0,51}(?P=b10))/Rs"; metadata: former_category MALWARE; classtype:trojan-activity; sid:2025018; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Nanocore, created_at 2017_11_22, malware_family NanoCore?, updated_at 2017_11_22;)

Added 2019-09-19 19:26:51 UTC


alert tcp $HOME_NET 1024:65535 -> $EXTERNAL_NET [!37018,!37039,1024:65535] (msg:"ET TROJAN Possible NanoCore? C2 64B"; flow:established,to_server; dsize:68; content:"|40 00 00 00|"; depth:5; pcre:"/^(?!.{0,63}\x00.{0,62}\x00.{0,61}\x00.{0,60}\x00)(?!.{0,62}\x00{2})(?!.{0,59}[A-Za-z0-9]{5})(?!(?P.).{0,63}(?P=b1).{0,62}(?P=b1).{0,61}(?P=b1).{0,60}(?P=b1))(?!.(?P.).{0,62}(?P=b2).{0,61}(?P=b2).{0,60}(?P=b2).{0,59}(?P=b2))(?!..(?P.).{0,61}(?P=b3).{0,60}(?P=b3).{0,59}(?P=b3).{0,58}(?P=b3))(?!...(?P.).{0,60}(?P=b4).{0,59}(?P=b4).{0,58}(?P=b4).{0,57}(?P=b4))(?!....(?P.).{0,59}(?P=b5).{0,58}(?P=b5).{0,57}(?P=b5).{0,56}(?P=b5))(?!.....(?P.).{0,58}(?P=b6).{0,57}(?P=b6).{0,56}(?P=b6).{0,55}(?P=b6))(?!......(?P.).{0,57}(?P=b7).{0,56}(?P=b7).{0,55}(?P=b7).{0,54}(?P=b7))(?!.......(?P.).{0,56}(?P=b8).{0,55}(?P=b8).{0,54}(?P=b8).{0,53}(?P=b8))(?!........(?P.).{0,55}(?P=b9).{0,54}(?P=b9).{0,53}(?P=b9).{0,52}(?P=b9))(?!.........(?P.).{0,54}(?P=b10).{0,53}(?P=b10).{0,52}(?P=b10).{0,51}(?P=b10))/Rs"; metadata: former_category TROJAN; classtype:trojan-activity; sid:2025018; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Nanocore, created_at 2017_11_22, malware_family NanoCore?, updated_at 2017_11_22;)

Added 2018-03-22 17:54:42 UTC


alert tcp $HOME_NET 1024:65535 -> $EXTERNAL_NET 1024:65535 (msg:"ET TROJAN Possible NanoCore? C2 64B"; flow:established,to_server; dsize:68; content:"|40 00 00 00|"; depth:5; pcre:"/^(?!.{0,63}\x00.{0,62}\x00.{0,61}\x00.{0,60}\x00)(?!.{0,62}\x00{2})(?!.{0,59}[A-Za-z0-9]{5})(?!(?P.).{0,63}(?P=b1).{0,62}(?P=b1).{0,61}(?P=b1).{0,60}(?P=b1))(?!.(?P.).{0,62}(?P=b2).{0,61}(?P=b2).{0,60}(?P=b2).{0,59}(?P=b2))(?!..(?P.).{0,61}(?P=b3).{0,60}(?P=b3).{0,59}(?P=b3).{0,58}(?P=b3))(?!...(?P.).{0,60}(?P=b4).{0,59}(?P=b4).{0,58}(?P=b4).{0,57}(?P=b4))(?!....(?P.).{0,59}(?P=b5).{0,58}(?P=b5).{0,57}(?P=b5).{0,56}(?P=b5))(?!.....(?P.).{0,58}(?P=b6).{0,57}(?P=b6).{0,56}(?P=b6).{0,55}(?P=b6))(?!......(?P.).{0,57}(?P=b7).{0,56}(?P=b7).{0,55}(?P=b7).{0,54}(?P=b7))(?!.......(?P.).{0,56}(?P=b8).{0,55}(?P=b8).{0,54}(?P=b8).{0,53}(?P=b8))(?!........(?P.).{0,55}(?P=b9).{0,54}(?P=b9).{0,53}(?P=b9).{0,52}(?P=b9))(?!.........(?P.).{0,54}(?P=b10).{0,53}(?P=b10).{0,52}(?P=b10).{0,51}(?P=b10))/Rs"; metadata: former_category TROJAN; classtype:trojan-activity; sid:2025018; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag Nanocore, created_at 2017_11_22, malware_family NanoCore?, updated_at 2017_11_22;)

Added 2017-11-22 18:59:06 UTC


Added 2017-11-22 18:57:56 UTC


Added 2017-11-22 18:56:05 UTC


Added 2017-11-22 18:55:32 UTC


Added 2017-11-22 18:41:16 UTC


Topic revision: r1 - 2022-05-19 - TWikiGuest
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © Emerging Threats