rule win_shifu_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.shifu."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.shifu"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 58 e8???????? 8bc4 3bc7 7411 688f000000 6a24 }
            // n = 7, score = 100
            //   58                   | pop                 eax
            //   e8????????           |                     
            //   8bc4                 | mov                 eax, esp
            //   3bc7                 | cmp                 eax, edi
            //   7411                 | je                  0x13
            //   688f000000           | push                0x8f
            //   6a24                 | push                0x24

        $sequence_1 = { 8845ff 53 8d45ff 50 8bcf e8???????? 8a4603 }
            // n = 7, score = 100
            //   8845ff               | mov                 byte ptr [ebp - 1], al
            //   53                   | push                ebx
            //   8d45ff               | lea                 eax, [ebp - 1]
            //   50                   | push                eax
            //   8bcf                 | mov                 ecx, edi
            //   e8????????           |                     
            //   8a4603               | mov                 al, byte ptr [esi + 3]

        $sequence_2 = { 50 ff15???????? 33d2 b9e8030000 f7f1 50 6810020000 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   33d2                 | xor                 edx, edx
            //   b9e8030000           | mov                 ecx, 0x3e8
            //   f7f1                 | div                 ecx
            //   50                   | push                eax
            //   6810020000           | push                0x210

        $sequence_3 = { 5f 5e 5d c3 a1???????? 85c0 741b }
            // n = 7, score = 100
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   a1????????           |                     
            //   85c0                 | test                eax, eax
            //   741b                 | je                  0x1d

        $sequence_4 = { 6a04 8bc6 ba???????? e8???????? 6a02 e8???????? 50 }
            // n = 7, score = 100
            //   6a04                 | push                4
            //   8bc6                 | mov                 eax, esi
            //   ba????????           |                     
            //   e8????????           |                     
            //   6a02                 | push                2
            //   e8????????           |                     
            //   50                   | push                eax

        $sequence_5 = { c785d8feffff28010000 ff15???????? 85c0 0f84b9000000 6a20 }
            // n = 5, score = 100
            //   c785d8feffff28010000     | mov    dword ptr [ebp - 0x128], 0x128
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   0f84b9000000         | je                  0xbf
            //   6a20                 | push                0x20

        $sequence_6 = { 8d85f8feffff 50 8bf3 e8???????? 8d85f0fcffff 8d7001 8a08 }
            // n = 7, score = 100
            //   8d85f8feffff         | lea                 eax, [ebp - 0x108]
            //   50                   | push                eax
            //   8bf3                 | mov                 esi, ebx
            //   e8????????           |                     
            //   8d85f0fcffff         | lea                 eax, [ebp - 0x310]
            //   8d7001               | lea                 esi, [eax + 1]
            //   8a08                 | mov                 cl, byte ptr [eax]

        $sequence_7 = { 8bf8 ff15???????? 81c700040000 7410 e8???????? 893d???????? e8???????? }
            // n = 7, score = 100
            //   8bf8                 | mov                 edi, eax
            //   ff15????????         |                     
            //   81c700040000         | add                 edi, 0x400
            //   7410                 | je                  0x12
            //   e8????????           |                     
            //   893d????????         |                     
            //   e8????????           |                     

        $sequence_8 = { 8d45fc 50 8b4508 e8???????? 85c0 750c 8b4dfc }
            // n = 7, score = 100
            //   8d45fc               | lea                 eax, [ebp - 4]
            //   50                   | push                eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   750c                 | jne                 0xe
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]

        $sequence_9 = { 85c0 7411 6880000000 6a24 ba???????? e8???????? 8365d400 }
            // n = 7, score = 100
            //   85c0                 | test                eax, eax
            //   7411                 | je                  0x13
            //   6880000000           | push                0x80
            //   6a24                 | push                0x24
            //   ba????????           |                     
            //   e8????????           |                     
            //   8365d400             | and                 dword ptr [ebp - 0x2c], 0

    condition:
        7 of them and filesize < 344064
}

rule win_shifu_w0 {
	meta:
		description = "Detects SHIFU Banking Trojan"
		author = "Florian Roth"
		contribution = "Daniel Plohmann"
		reference = "http://goo.gl/52n8WE"
		date = "2015-10-31"
		score = 70
		hash = "0066d1c8053ff8b0c07418c7f8d20e5cd64007bb850944269f611febd0c1afe0"
		hash = "3956d32a870d81be34cafc867769b2a2f55a96360070f1cb3d9addc2918357d5"
		hash = "3fde1b2b50fcb36a695f1e6bc577cd930c2343066d98982cf982393e55bfce0d"
		hash = "457ad4a4d4e675fe09f63873ca3364434dc872dde7d9b64ce7db919eaff47485"
		hash = "51edba913e8b83d1388b1be975957e439015289d51d3d5774d501551f220df6f"
		hash = "6611a2b79a3acf0003b1197aa5bfe488a33db69b663c79c6c5b023e86818d38b"
		hash = "72e239924faebf8209f8e3d093f264f778a55efb56b619f26cea73b1c4feb7a4"
		hash = "7a29cb641b9ac33d1bb405d364bc6e9c7ce3e218a8ff295b75ca0922cf418290"
		hash = "92fe4f9a87c796e993820d1bda8040aced36e316de67c9c0c5fc71aadc41e0f8"
		hash = "93ecb6bd7c76e1b66f8c176418e73e274e2c705986d4ac9ede9d25db4091ab05"
		hash = "a0b7fac69a4eb32953c16597da753b15060f6eba452d150109ff8aabc2c56123"
		hash = "a8b6e798116ce0b268e2c9afac61536b8722e86b958bd2ee95c6ecdec86130c9"
		hash = "d6244c1177b679b3d67f6cec34fe0ae87fba21998d4f5024d8eeaf15ca242503"
		hash = "dcc9c38e695ffd121e793c91ca611a4025a116321443297f710a47ce06afb36d"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/shifu_trojan.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.shifu"
        malpedia_version = "20170603"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
	strings:
		$x1 = "\\Gather\\Dividerail.pdb" ascii

		$s0 = "\\payload\\payload.x86.pdb" ascii
		$s1 = "USER_PRIV_GUEST" fullword wide
		$s2 = "USER_PRIV_ADMIN" fullword wide
		$s3 = "USER_PRIV_USER" fullword wide
		$s4 = "%ws\\%ws" wide
	condition:
		($x1 or 5 of ($s*))
}