Volatility3 MCP Server

/* This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as long as you use it under this license. */ /* Yara Rule Set Author: Florian Roth Date: 2016-12-29 Identifier: GRIZZLY STEPPE */ rule GRIZZLY_STEPPE_Malware_1 { meta: description = "Auto-generated rule - file HRDG022184_certclint.dll" author = "Florian Roth" reference = "https://goo.gl/WVflzO" date = "2016-12-29" hash1 = "9f918fb741e951a10e68ce6874b839aef5a26d60486db31e509f8dcaa13acec5" strings: $s1 = "S:\\Lidstone\\renewing\\HA\\disable\\In.pdb" fullword ascii $s2 = "Repeat last find command)Replace specific text with different text" fullword wide $s3 = "l\\Processor(0)\\% Processor Time" fullword wide $s6 = "Self Process" fullword wide $s7 = "Default Process" fullword wide $s8 = "Star Polk.exe" fullword wide condition: ( uint16(0) == 0x5a4d and filesize < 300KB and 4 of them ) } rule GRIZZLY_STEPPE_Malware_2 { meta: description = "Auto-generated rule - file 9acba7e5f972cdd722541a23ff314ea81ac35d5c0c758eb708fb6e2cc4f598a0" author = "Florian Roth" reference = "https://goo.gl/WVflzO" date = "2016-12-29" hash1 = "9acba7e5f972cdd722541a23ff314ea81ac35d5c0c758eb708fb6e2cc4f598a0" hash2 = "55058d3427ce932d8efcbe54dccf97c9a8d1e85c767814e34f4b2b6a6b305641" strings: $x1 = "GoogleCrashReport.dll" fullword ascii $s1 = "CrashErrors" fullword ascii $s2 = "CrashSend" fullword ascii $s3 = "CrashAddData" fullword ascii $s4 = "CrashCleanup" fullword ascii $s5 = "CrashInit" fullword ascii condition: ( uint16(0) == 0x5a4d and filesize < 1000KB and $x1 ) or ( all of them ) } rule PAS_TOOL_PHP_WEB_KIT_mod { meta: description = "Detects PAS Tool PHP Web Kit" reference = "https://www.us-cert.gov/security-publications/GRIZZLY-STEPPE-Russian-Malicious-Cyber-Activity" author = "US CERT - modified by Florian Roth due to performance reasons" date = "2016/12/29" strings: $php = "<?php" $base64decode1 = "='base'.(" $strreplace = "str_replace(\"\\n\", ''" $md5 = ".substr(md5(strrev(" $gzinflate = "gzinflate" $cookie = "_COOKIE" $isset = "isset" condition: $php at 0 and (filesize > 10KB and filesize < 30KB) and #cookie == 2 and #isset == 3 and all of them } rule WebShell_PHP_Web_Kit_v3 { meta: description = "Detects PAS Tool PHP Web Kit" reference = "https://github.com/wordfence/grizzly" author = "Florian Roth" date = "2016/01/01" strings: $php = "<?php $" $php2 = "@assert(base64_decode($_REQUEST[" $s1 = "(str_replace(\"\\n\", '', '" $s2 = "(strrev($" ascii $s3 = "de'.'code';" ascii condition: ( $php at 0 or $php2 ) and filesize > 8KB and filesize < 100KB and all of ($s*) } rule WebShell_PHP_Web_Kit_v4 { meta: description = "Detects PAS Tool PHP Web Kit" reference = "https://github.com/wordfence/grizzly" author = "Florian Roth" date = "2016/01/01" strings: $php = "<?php $" $s1 = "(StR_ReplAcE(\"\\n\",''," $s2 = ";if(PHP_VERSION<'5'){" ascii $s3 = "=SuBstr_rePlACe(" ascii condition: $php at 0 and filesize > 8KB and filesize < 100KB and 2 of ($s*) }