#alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Suspicious IAT ZwWriteVirtualMemory? - Undocumented API Which Can be Used for CnC? Functionality"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"ZwSystemDebugControl"; nocase; fast_pattern:only; reference:url,sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012770; rev:2; metadata:created_at 2011_05_03, former_category HUNTING, updated_at 2021_06_23;)

Added 2021-06-23 19:31:44 UTC

#alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Suspicious IAT ZwWriteVirtualMemory? - Undocumented API Which Can be Used for CnC? Functionality"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"ZwSystemDebugControl"; nocase; fast_pattern:only; reference:url,sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012770; rev:2; metadata:created_at 2011_05_03, updated_at 2011_05_03;)

Added 2018-09-13 19:42:50 UTC

Added 2018-09-13 17:55:28 UTC

#alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Suspicious IAT ZwWriteVirtualMemory? - Undocumented API Which Can be Used for CnC? Functionality"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"ZwSystemDebugControl"; nocase; fast_pattern:only; reference:url,sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012770; rev:2; metadata:created_at 2011_05_03, updated_at 2011_05_03;)

Added 2017-08-07 21:05:57 UTC

##alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET DELETED Suspicious IAT ZwWriteVirtualMemory? - Undocumented API Which Can be Used for CnC? Functionality"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"ZwSystemDebugControl"; nocase; fast_pattern:only; reference:url,sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012770; rev:1;)

Added 2012-03-13 14:42:39 UTC

#alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET TROJAN Suspicious IAT ZwWriteVirtualMemory? - Undocumented API Which Can be Used for CnC? Functionality"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"ZwSystemDebugControl"; nocase; fast_pattern:only; reference:url,sans.org/reading_room/whitepapers/malicious/rss/_33649; classtype:misc-activity; sid:2012770; rev:1;)

Added 2011-10-12 19:35:10 UTC

#alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET TROJAN Suspicious IAT ZwWriteVirtualMemory? - Undocumented API Which Can be Used for CnC? Functionality"; flowbits:isset,ET.http.binary; flow:established,to_client; content:"ZwSystemDebugControl"; nocase; fast_pattern:only; classtype:misc-activity; reference:url,sans.org/reading_room/whitepapers/malicious/rss/_33649; sid:2012770; rev:1;)

Added 2011-05-03 18:07:17 UTC