rule win_woolger_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.woolger"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { c685fcf8ffff00 4f 8a4701 47 84c0 }
            // n = 5, score = 200
            //   c685fcf8ffff00       | mov                 byte ptr [ebp - 0x704], 0
            //   4f                   | dec                 edi
            //   8a4701               | mov                 al, byte ptr [edi + 1]
            //   47                   | inc                 edi
            //   84c0                 | test                al, al

        $sequence_1 = { e9???????? 83f809 750a be???????? }
            // n = 4, score = 200
            //   e9????????           |                     
            //   83f809               | cmp                 eax, 9
            //   750a                 | jne                 0xc
            //   be????????           |                     

        $sequence_2 = { e9???????? 83f825 750a be???????? e9???????? 83f826 }
            // n = 6, score = 200
            //   e9????????           |                     
            //   83f825               | cmp                 eax, 0x25
            //   750a                 | jne                 0xc
            //   be????????           |                     
            //   e9????????           |                     
            //   83f826               | cmp                 eax, 0x26

        $sequence_3 = { 0f848e000000 56 57 b980000000 8db5fcfdffff bf???????? }
            // n = 6, score = 200
            //   0f848e000000         | je                  0x94
            //   56                   | push                esi
            //   57                   | push                edi
            //   b980000000           | mov                 ecx, 0x80
            //   8db5fcfdffff         | lea                 esi, [ebp - 0x204]
            //   bf????????           |                     

        $sequence_4 = { 83f814 750a be???????? e9???????? 83f81b }
            // n = 5, score = 200
            //   83f814               | cmp                 eax, 0x14
            //   750a                 | jne                 0xc
            //   be????????           |                     
            //   e9????????           |                     
            //   83f81b               | cmp                 eax, 0x1b

        $sequence_5 = { e9???????? 83f827 750a be???????? }
            // n = 4, score = 200
            //   e9????????           |                     
            //   83f827               | cmp                 eax, 0x27
            //   750a                 | jne                 0xc
            //   be????????           |                     

        $sequence_6 = { 68???????? 56 6a00 6a00 ff15???????? 5e }
            // n = 6, score = 200
            //   68????????           |                     
            //   56                   | push                esi
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   ff15????????         |                     
            //   5e                   | pop                 esi

        $sequence_7 = { 8d85fcfeffff 50 0f95c3 ff15???????? 8b4f08 51 8b4f04 }
            // n = 7, score = 200
            //   8d85fcfeffff         | lea                 eax, [ebp - 0x104]
            //   50                   | push                eax
            //   0f95c3               | setne               bl
            //   ff15????????         |                     
            //   8b4f08               | mov                 ecx, dword ptr [edi + 8]
            //   51                   | push                ecx
            //   8b4f04               | mov                 ecx, dword ptr [edi + 4]

        $sequence_8 = { 83c410 e8???????? 8bbdecfeffff eb1f be???????? eb13 be???????? }
            // n = 7, score = 200
            //   83c410               | add                 esp, 0x10
            //   e8????????           |                     
            //   8bbdecfeffff         | mov                 edi, dword ptr [ebp - 0x114]
            //   eb1f                 | jmp                 0x21
            //   be????????           |                     
            //   eb13                 | jmp                 0x15
            //   be????????           |                     

        $sequence_9 = { 53 57 8b7d10 89bdecfeffff }
            // n = 4, score = 200
            //   53                   | push                ebx
            //   57                   | push                edi
            //   8b7d10               | mov                 edi, dword ptr [ebp + 0x10]
            //   89bdecfeffff         | mov                 dword ptr [ebp - 0x114], edi

    condition:
        7 of them and filesize < 196608
}

/*
	Yara Rule Set
	Author: Florian Roth
	Date: 2015-09-01
	Identifier: Rocket Kitten Keylogger
*/
rule win_woolger_w0 {
	meta:
		description = "Detects Keylogger used in Rocket Kitten APT"
		author = "Florian Roth"
		reference = "https://goo.gl/SjQhlp"
		date = "2015-09-01"
		super_rule = 1
		hash1 = "1c9e519dca0468a87322bebe2a06741136de7969a4eb3efda0ab8db83f0807b4"
		hash2 = "495a15f9f30d6f6096a97c2bd8cc5edd4d78569b8d541b1d5a64169f8109bc5b"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.woolger"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
	strings:
		$x1 = "\\Release\\CWoolger.pdb" ascii
		$x2 = "WoolenLoger\\obj\\x86\\Release" ascii
		$x3 = "D:\\Yaser Logers\\"
		$z1 = "woolger" fullword wide
		$s1 = "oShellLink.TargetPath = \"" fullword ascii
		$s2 = "wscript.exe " fullword ascii
		$s3 = "strSTUP = WshShell.SpecialFolders(\"Startup\")" fullword ascii
		$s4 = "[CapsLock]" fullword ascii
	condition:
		/* File detection */
		(uint16(0) == 0x5a4d and filesize < 200KB and (1 of ($x*) or ($z1 and 2 of ($s*)))) or
		/* Memory detection */
		($z1 and all of ($s*)) 
}