rule win_shifu_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        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 = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        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 = { 740a c74618d4d53602 894d18 ff7508 ff7628 ff5624 8b4518 }
            // n = 7, score = 100
            //   740a                 | je                  0xc
            //   c74618d4d53602       | mov                 dword ptr [esi + 0x18], 0x236d5d4
            //   894d18               | mov                 dword ptr [ebp + 0x18], ecx
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff7628               | push                dword ptr [esi + 0x28]
            //   ff5624               | call                dword ptr [esi + 0x24]
            //   8b4518               | mov                 eax, dword ptr [ebp + 0x18]

        $sequence_1 = { 55 8bec 83ec10 8b423c 53 03c2 56 }
            // n = 7, score = 100
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   83ec10               | sub                 esp, 0x10
            //   8b423c               | mov                 eax, dword ptr [edx + 0x3c]
            //   53                   | push                ebx
            //   03c2                 | add                 eax, edx
            //   56                   | push                esi

        $sequence_2 = { e8???????? 6a02 68???????? 6a01 53 }
            // n = 5, score = 100
            //   e8????????           |                     
            //   6a02                 | push                2
            //   68????????           |                     
            //   6a01                 | push                1
            //   53                   | push                ebx

        $sequence_3 = { bf00800000 57 53 ff35???????? ffd6 57 53 }
            // n = 7, score = 100
            //   bf00800000           | mov                 edi, 0x8000
            //   57                   | push                edi
            //   53                   | push                ebx
            //   ff35????????         |                     
            //   ffd6                 | call                esi
            //   57                   | push                edi
            //   53                   | push                ebx

        $sequence_4 = { 7437 6a0c 58 e8???????? 8bc4 85c0 7411 }
            // n = 7, score = 100
            //   7437                 | je                  0x39
            //   6a0c                 | push                0xc
            //   58                   | pop                 eax
            //   e8????????           |                     
            //   8bc4                 | mov                 eax, esp
            //   85c0                 | test                eax, eax
            //   7411                 | je                  0x13

        $sequence_5 = { e8???????? 894508 3bc3 740b 57 e8???????? 8b4508 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   894508               | mov                 dword ptr [ebp + 8], eax
            //   3bc3                 | cmp                 eax, ebx
            //   740b                 | je                  0xd
            //   57                   | push                edi
            //   e8????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]

        $sequence_6 = { 57 40 50 6800000080 ff7508 8d4df8 8945e8 }
            // n = 7, score = 100
            //   57                   | push                edi
            //   40                   | inc                 eax
            //   50                   | push                eax
            //   6800000080           | push                0x80000000
            //   ff7508               | push                dword ptr [ebp + 8]
            //   8d4df8               | lea                 ecx, [ebp - 8]
            //   8945e8               | mov                 dword ptr [ebp - 0x18], eax

        $sequence_7 = { c645ff01 eb4a 807dff00 740f 8bf3 e8???????? 85c0 }
            // n = 7, score = 100
            //   c645ff01             | mov                 byte ptr [ebp - 1], 1
            //   eb4a                 | jmp                 0x4c
            //   807dff00             | cmp                 byte ptr [ebp - 1], 0
            //   740f                 | je                  0x11
            //   8bf3                 | mov                 esi, ebx
            //   e8????????           |                     
            //   85c0                 | test                eax, eax

        $sequence_8 = { 8d85f8feffff 57 50 ffd3 83c410 8d85f8feffff 50 }
            // n = 7, score = 100
            //   8d85f8feffff         | lea                 eax, [ebp - 0x108]
            //   57                   | push                edi
            //   50                   | push                eax
            //   ffd3                 | call                ebx
            //   83c410               | add                 esp, 0x10
            //   8d85f8feffff         | lea                 eax, [ebp - 0x108]
            //   50                   | push                eax

        $sequence_9 = { 8d85e4feffff 50 ff15???????? 85c0 7465 6a00 }
            // n = 6, score = 100
            //   8d85e4feffff         | lea                 eax, [ebp - 0x11c]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   7465                 | je                  0x67
            //   6a00                 | push                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*))
}