/* Op Cleaver -------------------------------------------------------------- */ rule OPCLEAVER_BackDoorLogger { meta: description = "Keylogger used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "e9149baa-83c0-597f-833c-ea0241bb60e6" strings: $s1 = "BackDoorLogger" $s2 = "zhuAddress" condition: all of them } rule OPCLEAVER_Jasus { meta: description = "ARP cache poisoner used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "8e04b258-e071-5974-9778-b9d0b97be8d5" strings: $s1 = "pcap_dump_open" $s2 = "Resolving IPs to poison..." $s3 = "WARNNING: Gateway IP can not be found" condition: all of them } rule OPCLEAVER_LoggerModule { meta: description = "Keylogger used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "949e7ff4-2102-5c89-83c9-f7ba64745661" strings: $s1 = "%s-%02d%02d%02d%02d%02d.r" $s2 = "C:\\Users\\%s\\AppData\\Cookies\\" condition: all of them } rule OPCLEAVER_NetC { meta: description = "Net Crawler used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "68f32662-0d7d-5dfa-8bfd-ca41d383e19c" strings: $s1 = "NetC.exe" wide $s2 = "Net Service" condition: all of them } rule OPCLEAVER_ShellCreator2 { meta: description = "Shell Creator used by attackers in Operation Cleaver to create ASPX web shells" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "b62336c3-39e5-55f8-98df-6c2a2cb0764a" strings: $s1 = "ShellCreator2.Properties" $s2 = "set_IV" condition: all of them } rule OPCLEAVER_SmartCopy2 { meta: description = "Malware or hack tool used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "898d9060-208a-5dfb-a452-50ab49b80a9d" strings: $s1 = "SmartCopy2.Properties" $s2 = "ZhuFrameWork" condition: all of them } rule OPCLEAVER_SynFlooder { meta: description = "Malware or hack tool used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "bdaf02f4-1226-569b-9f55-999be7ff397a" strings: $s1 = "Unable to resolve [ %s ]. ErrorCode %d" $s2 = "s IP is : %s" $s3 = "Raw TCP Socket Created successfully." condition: all of them } rule OPCLEAVER_TinyZBot { meta: description = "Tiny Bot used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "4fad21a6-a900-5afb-876d-99a6d93e0c2c" strings: $s1 = "NetScp" wide $s2 = "TinyZBot.Properties.Resources.resources" $s3 = "Aoao WaterMark" $s4 = "Run_a_exe" $s5 = "netscp.exe" $s6 = "get_MainModule_WebReference_DefaultWS" $s7 = "remove_CheckFileMD5Completed" $s8 = "http://tempuri.org/" $s9 = "Zhoupin_Cleaver" condition: (($s1 and $s2) or ($s3 and $s4 and $s5) or ($s6 and $s7 and $s8) or $s9) } rule OPCLEAVER_ZhoupinExploitCrew { meta: description = "Keywords used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "4e7457a0-e6e1-535c-b04b-ad313b496ce1" strings: $s1 = "zhoupin exploit crew" nocase $s2 = "zhopin exploit crew" nocase condition: 1 of them } rule OPCLEAVER_antivirusdetector { meta: description = "Hack tool used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "25ab4eaf-eae7-5a55-bed4-42f621d5f06c" strings: $s1 = "getShadyProcess" $s2 = "getSystemAntiviruses" $s3 = "AntiVirusDetector" condition: all of them } rule OPCLEAVER_csext { meta: description = "Backdoor used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "f865eae5-9988-5533-a004-e1694761a557" strings: $s1 = "COM+ System Extentions" $s2 = "csext.exe" $s3 = "COM_Extentions_bin" condition: all of them } rule OPCLEAVER_kagent { meta: description = "Backdoor used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "32d20495-eeed-5b2b-915d-cad60fa991f6" strings: $s1 = "kill command is in last machine, going back" $s2 = "message data length in B64: %d Bytes" condition: all of them } rule OPCLEAVER_mimikatzWrapper { meta: description = "Mimikatz Wrapper used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "e9427e29-e581-5a5b-8f1d-4b9bfeec0946" strings: $s1 = "mimikatzWrapper" $s2 = "get_mimikatz" condition: all of them } rule OPCLEAVER_pvz_in { meta: description = "Parviz tool used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "dede12b3-f1dd-58ba-a860-829b2331b740" strings: $s1 = "LAST_TIME=00/00/0000:00:00PM$" $s2 = "if %%ERRORLEVEL%% == 1 GOTO line" condition: all of them } rule OPCLEAVER_pvz_out { meta: description = "Parviz tool used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "46b51bff-dfd9-5f56-897c-422112bc837b" strings: $s1 = "Network Connectivity Module" wide $s2 = "OSPPSVC" wide condition: all of them } rule OPCLEAVER_wndTest { meta: description = "Backdoor used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "f8daa0a8-f0f0-5bf7-b9ab-eaf5335ff2b9" strings: $s1 = "[Alt]" wide $s2 = "<< %s >>:" wide $s3 = "Content-Disposition: inline; comp=%s; account=%s; product=%d;" condition: all of them } rule OPCLEAVER_zhCat { meta: description = "Network tool used by Iranian hackers and used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "e1f1bc48-b895-5e23-8ffd-b6ea9c8eb26f" strings: $s1 = "Mozilla/4.0 ( compatible; MSIE 7.0; AOL 8.0 )" ascii fullword $s2 = "ABC ( A Big Company )" wide fullword condition: all of them } rule OPCLEAVER_zhLookUp { meta: description = "Hack tool used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "45ef9a90-db4c-59c3-b694-da3f539b118b" strings: $s1 = "zhLookUp.Properties" condition: all of them } rule OPCLEAVER_zhmimikatz { meta: description = "Mimikatz wrapper used by attackers in Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" author = "Cylance Inc." score = 70 id = "fba8ab6e-3b61-53a1-b4df-178442e3cf24" strings: $s1 = "MimikatzRunner" $s2 = "zhmimikatz" condition: all of them } rule OPCLEAVER_Parviz_Developer { meta: description = "Parviz developer known from Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE" author = "Florian Roth (Nextron Systems)" score = 70 id = "2bfa90a0-0495-5b21-98f7-5ed7ebc74b2d" strings: $s1 = "Users\\parviz\\documents\\" nocase condition: $s1 } rule OPCLEAVER_CCProxy_Config { meta: description = "CCProxy config known from Operation Cleaver" reference = "http://cylance.com/assets/Cleaver/Cylance_Operation_Cleaver_Report.pdf" date = "2014/12/02" license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE" author = "Florian Roth (Nextron Systems)" score = 70 id = "c4d80a2a-2a32-585e-bc20-1c5118e4ee48" strings: $s1 = "UserName=User-001" fullword ascii $s2 = "Web=1" fullword ascii $s3 = "Mail=1" fullword ascii $s4 = "FTP=0" fullword ascii $x1 = "IPAddressLow=78.109.194.114" fullword ascii condition: all of ($s*) or $x1 }