diff --git a/malware/APT_OPCleaver.yar b/malware/APT_OPCleaver.yar index a249674..2f37e36 100644 --- a/malware/APT_OPCleaver.yar +++ b/malware/APT_OPCleaver.yar @@ -277,3 +277,333 @@ rule Zh0uSh311 condition: all of them } +import "pe" + + +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" + 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" + 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" + 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" + 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" + 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" + 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" + strings: + $s1 = "Unable to resolve [ %s ]. ErrorCode %d" + $s2 = "your target’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" + 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" + 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" + 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" + 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" + 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" + 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" + 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" + 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" + 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" + 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" + 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" + 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" + author = "Florian Roth" + score = "70" + 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" + author = "Florian Roth" + score = "70" + 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 +}