Yara Rule - ๊ฐ์ง
Yara ์ ์.
Yara Rule - Detects
Yara definition.
Author: Florian Roth
https://www.mandiant.com/resources/blog/3cx-software-supply-chain-compromise
095fbb7685f5ad054bab28346d744e137564beabc33c13a25818936ddc739f5b;eFile infected extensions https://twitter.com/malwrhunterteam/status/1642994177095942146?s=20
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
hash1 = "404b09def6054a281b41d309d809a428"
hash2 = "c6441c961dcad0fe127514a918eaabd4"
date = "2023-04-20"
$rh1 = { 68 5D 7A D2 2C 3C 14 81 2C 3C 14 81 2C 3C 14 81 77 54 10 80 26 3C 14 81 77 54 17 80 29 3C 14 81 77 54 11 80 AB 3C 14 81 D4 4C 11 80 33 3C 14 81 D4 4C 10 80 22 3C 14 81 D4 4C 17 80 25 3C 14 81 77 54 15 80 27 3C 14 81 2C 3C 15 81 4B 3C 14 81 94 4D 1D 80 28 3C 14 81 94 4D 14 80 2D 3C 14 81 94 4D 16 80 2D 3C 14 81 }
$rh2 = { 00 E5 A0 2B 44 84 CE 78 44 84 CE 78 44 84 CE 78 1F EC CA 79 49 84 CE 78 1F EC CD 79 41 84 CE 78 1F EC CB 79 C8 84 CE 78 BC F4 CA 79 4A 84 CE 78 BC F4 CD 79 4D 84 CE 78 BC F4 CB 79 65 84 CE 78 1F EC CF 79 43 84 CE 78 44 84 CF 78 22 84 CE 78 FC F5 C7 79 42 84 CE 78 FC F5 CE 79 45 84 CE 78 FC F5 CC 79 45 84 CE 78}
$rh3 = { DA D2 21 22 9E B3 4F 71 9E B3 4F 71 9E B3 4F 71 C5 DB 4C 70 94 B3 4F 71 C5 DB 4A 70 15 B3 4F 71 C5 DB 4B 70 8C B3 4F 71 66 C3 4B 70 8C B3 4F 71 66 C3 4C 70 8F B3 4F 71 C5 DB 49 70 9F B3 4F 71 66 C3 4A 70 B0 B3 4F 71 C5 DB 4E 70 97 B3 4F 71 9E B3 4E 71 F9 B3 4F 71 26 C2 46 70 9F B3 4F 71 26 C2 B0 71 9F B3 4F 71 9E B3 D8 71 9F B3 4F 71 26 C2 4D 70 9F B3 4F 71 }
$rh4 = { CB 8A 35 66 8F EB 5B 35 8F EB 5B 35 8F EB 5B 35 D4 83 5F 34 85 EB 5B 35 D4 83 58 34 8A EB 5B 35 D4 83 5E 34 09 EB 5B 35 77 9B 5E 34 92 EB 5B 35 77 9B 5F 34 81 EB 5B 35 77 9B 58 34 86 EB 5B 35 D4 83 5A 34 8C EB 5B 35 8F EB 5A 35 D3 EB 5B 35 37 9A 52 34 8C EB 5B 35 37 9A 58 34 8E EB 5B 35 37 9A 5B 34 8E EB 5B 35 37 9A 59 34 8E EB 5B 35 }
uint16(0) == 0x5A4D and uint32(uint32(0x3C)) == 0x00004550 and 1 of ($rh*)
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
hash1 = "404b09def6054a281b41d309d809a428"
date = "2023-04-20"
$sb1 = { C1 E0 05 4D 8? [2] 33 D0 45 69 C0 7D 50 BF 12 8B C2 41 FF C2 C1 E8 07 33 D0 8B C2 C1 E0 16 41 81 C0 87 D6 12 00 }
$si1 = "CryptBinaryToStringA" fullword
$si2 = "BCryptGenerateSymmetricKey" fullword
$si3 = "CreateThread" fullword
$ss1 = "ChainingModeGCM" wide
$ss2 = "__tutma" fullword
(uint16(0) == 0x5A4D) and (uint32(uint32(0x3C)) == 0x00004550) and (uint16(uint32(0x3C)+0x18) == 0x020B) and all of them
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
md5 = "c6441c961dcad0fe127514a918eaabd4"
date = "2023-04-20"
$ss1 = { 61 70 70 6C 69 63 61 74 69 6F 6E 2F 6A 73 6F 6E 2C 20 74 65 78 74 2F 6A 61 76 61 73 63 72 69 70 74 2C 20 2A 2F 2A 3B 20 71 3D 30 2E 30 31 00 00 61 63 63 65 70 74 00 00 65 6E 2D 55 53 2C 65 6E 3B 71 3D 30 2E 39 00 00 61 63 63 65 70 74 2D 6C 61 6E 67 75 61 67 65 00 63 6F 6F 6B 69 65 00 00 }
$si1 = "HttpSendRequestW" fullword
$si2 = "CreateNamedPipeW" fullword
$si3 = "CreateThread" fullword
$se1 = "DllGetClassObject" fullword
(uint16(0) == 0x5A4D) and (uint32(uint32(0x3C)) == 0x00004550) and (uint16(uint32(0x3C)+0x18) == 0x020B) and all of them
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
hash1 = "404b09def6054a281b41d309d809a428"
hash2 = "c6441c961dcad0fe127514a918eaabd4"
date = "2023-04-20"
$sb1 = { FF 15 FC 76 01 00 8B F0 85 C0 74 ?? 8D 50 01 [6-16] FF 15 [4] 48 8B D8 48 85 C0 74 ?? 89 ?? 24 28 44 8B CD 4C 8B C? 48 89 44 24 20 }
$sb2 = { 33 D2 33 C9 FF 15 [4] 4C 8B CB 4C 89 74 24 28 4C 8D 05 [2] FF FF 44 89 74 24 20 33 D2 33 C9 FF 15 }
$si1 = "CreateThread" fullword
$si2 = "MultiByteToWideChar" fullword
$si3 = "LocalAlloc" fullword
$se1 = "DllGetClassObject" fullword
(uint16(0) == 0x5A4D) and (uint32(uint32(0x3C)) == 0x00004550) and (uint16(uint32(0x3C)+0x18) == 0x020B) and all of them
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
hash1 = "6727284586ecf528240be21bb6e97f88"
date = "2023-04-20"
$sb1 = { 48 8D 15 [4] 48 8D 4C 24 4C E8 [4] 85 C0 74 ?? 48 8D 15 [4] 48 8D 4C 24 4C E8 [4] 85 C0 74 ?? 48 8D 15 [4] 48 8D 4C 24 4C E8 [4] 85 C0 74 ?? 48 8D [3] 48 8B CB FF 15 [4] EB }
$ss1 = "chrome.exe" wide fullword
$ss2 = "firefox.exe" wide fullword
$ss3 = "msedge.exe" wide fullword
$ss4 = "\\\\.\\pipe\\*" ascii fullword
$ss5 = "FindFirstFileA" ascii fullword
$ss6 = "Process32FirstW" ascii fullword
$ss7 = "RtlAdjustPrivilege" ascii fullword
$ss8 = "GetCurrentProcess" ascii fullword
$ss9 = "NtWaitForSingleObject" ascii fullword
(uint16(0) == 0x5A4D) and (uint32(uint32(0x3C)) == 0x00004550) and (uint16(uint32(0x3C)+0x18) == 0x020B) and all of them
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
hash1 = "00a43d64f9b5187a1e1f922b99b09b77"
date = "2023-04-20"
$ss1 = "C:\\Programdata\\" wide
$ss2 = "devobj.dll" wide fullword
$ss3 = "msvcr100.dll" wide fullword
$ss4 = "TpmVscMgrSvr.exe" wide fullword
$ss5 = "\\Microsoft\\Windows\\TPM" wide fullword
$ss6 = "CreateFileW" ascii fullword
(uint16(0) == 0x5A4D) and (uint32(uint32(0x3C)) == 0x00004550) and (uint16(uint32(0x3C)+0x18) == 0x010B) and all of them
score = 75
disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
hash1 = "451c23709ecd5a8461ad060f6346930c"
date = "2023-04-20"
$hex1 = { 6e 61 6d 65 3d 22 75 69 64 22 25 73 25 73 25 75 25 73 }
$hex_uni1 = { 6e 00 61 00 6d 00 65 00 3d 00 22 00 75 00 69 00 64 00 22 00 25 00 73 00 25 00 73 00 25 00 75 00 25 00 73 }
$s1 = "name=\"uid\"%s%s%u%s" ascii wide
$hex2 = { 6e 61 6d 65 3d 22 73 65 73 73 69 6f 6e 22 25 73 25 73 25 75 25 73 }
$hex_uni2 = { 6e 00 61 00 6d 00 65 00 3d 00 22 00 73 00 65 00 73 00 73 00 69 00 6f 00 6e 00 22 00 25 00 73 00 25 00 73 00 25 00 75 00 25 00 73 }
$s2 = "name=\"session\"%s%s%u%s" ascii wide
$hex3 = { 6e 61 6d 65 3d 22 61 63 74 69 6f 6e 22 25 73 25 73 25 73 25 73 }
$hex_uni3 = { 6e 00 61 00 6d 00 65 00 3d 00 22 00 61 00 63 00 74 00 69 00 6f 00 6e 00 22 00 25 00 73 00 25 00 73 00 25 00 73 00 25 00 73 }
$s3 = "name=\"action\"%s%s%s%s" ascii wide
$hex4 = { 6e 61 6d 65 3d 22 74 6f 6b 65 6e 22 25 73 25 73 25 75 25 73 }
$hex_uni4 = { 6e 00 61 00 6d 00 65 00 3d 00 22 00 74 00 6f 00 6b 00 65 00 6e 00 22 00 25 00 73 00 25 00 73 00 25 00 75 00 25 00 73 }
$s4 = "name=\"token\"%s%s%u%s" ascii wide
$str1 = "--N9dLfqxHNUUw8qaUPqggVTpX-" wide ascii nocase
date = "2023-04-20"
score = 70
$x1 = "www.tradingtechnologies.com/trading/order-management" ascii wide
$x2 = "X_TRADER_r7.17.90p608.exe" ascii wide
$fp1 = "<html"```
[https://github.com/Neo23x0/signature-base/commit/64787d0e4e7cb243f31c4f9dc15884abec7c7701](https://github.com/Neo23x0/signature-base/commit/64787d0e4e7cb243f31c4f9dc15884abec7c7701)