rule win_agfspy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.agfspy."
        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.agfspy"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { 3b06 75c4 c6459801 8b4e7c 85c9 7e06 8d4101 }
            // n = 7, score = 300
            //   3b06                 | cmp                 eax, dword ptr [esi]
            //   75c4                 | jne                 0xffffffc6
            //   c6459801             | mov                 byte ptr [ebp - 0x68], 1
            //   8b4e7c               | mov                 ecx, dword ptr [esi + 0x7c]
            //   85c9                 | test                ecx, ecx
            //   7e06                 | jle                 8
            //   8d4101               | lea                 eax, [ecx + 1]

        $sequence_1 = { 040c 3452 888528fdffff 8b8518fdffff 040d 888529fdffff 8b8518fdffff }
            // n = 7, score = 300
            //   040c                 | add                 al, 0xc
            //   3452                 | xor                 al, 0x52
            //   888528fdffff         | mov                 byte ptr [ebp - 0x2d8], al
            //   8b8518fdffff         | mov                 eax, dword ptr [ebp - 0x2e8]
            //   040d                 | add                 al, 0xd
            //   888529fdffff         | mov                 byte ptr [ebp - 0x2d7], al
            //   8b8518fdffff         | mov                 eax, dword ptr [ebp - 0x2e8]

        $sequence_2 = { e9???????? 8d41d0 6683f809 0f87cb000000 83e930 8bda 894df0 }
            // n = 7, score = 300
            //   e9????????           |                     
            //   8d41d0               | lea                 eax, [ecx - 0x30]
            //   6683f809             | cmp                 ax, 9
            //   0f87cb000000         | ja                  0xd1
            //   83e930               | sub                 ecx, 0x30
            //   8bda                 | mov                 ebx, edx
            //   894df0               | mov                 dword ptr [ebp - 0x10], ecx

        $sequence_3 = { 8bd9 56 57 8b4b10 8b5308 8d4101 3bd0 }
            // n = 7, score = 300
            //   8bd9                 | mov                 ebx, ecx
            //   56                   | push                esi
            //   57                   | push                edi
            //   8b4b10               | mov                 ecx, dword ptr [ebx + 0x10]
            //   8b5308               | mov                 edx, dword ptr [ebx + 8]
            //   8d4101               | lea                 eax, [ecx + 1]
            //   3bd0                 | cmp                 edx, eax

        $sequence_4 = { 8b4604 a803 7437 8b0e 894dd0 85c9 742e }
            // n = 7, score = 300
            //   8b4604               | mov                 eax, dword ptr [esi + 4]
            //   a803                 | test                al, 3
            //   7437                 | je                  0x39
            //   8b0e                 | mov                 ecx, dword ptr [esi]
            //   894dd0               | mov                 dword ptr [ebp - 0x30], ecx
            //   85c9                 | test                ecx, ecx
            //   742e                 | je                  0x30

        $sequence_5 = { 6804010000 50 e8???????? 83c40c 8d85d0fdffff 6a5c }
            // n = 6, score = 300
            //   6804010000           | push                0x104
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d85d0fdffff         | lea                 eax, [ebp - 0x230]
            //   6a5c                 | push                0x5c

        $sequence_6 = { 8d4df0 50 8975f0 c745f400000000 e8???????? 8975e8 c745ec00000000 }
            // n = 7, score = 300
            //   8d4df0               | lea                 ecx, [ebp - 0x10]
            //   50                   | push                eax
            //   8975f0               | mov                 dword ptr [ebp - 0x10], esi
            //   c745f400000000       | mov                 dword ptr [ebp - 0xc], 0
            //   e8????????           |                     
            //   8975e8               | mov                 dword ptr [ebp - 0x18], esi
            //   c745ec00000000       | mov                 dword ptr [ebp - 0x14], 0

        $sequence_7 = { 50 8d45f4 64a300000000 8bf9 8b5d08 8bcb 895db8 }
            // n = 7, score = 300
            //   50                   | push                eax
            //   8d45f4               | lea                 eax, [ebp - 0xc]
            //   64a300000000         | mov                 dword ptr fs:[0], eax
            //   8bf9                 | mov                 edi, ecx
            //   8b5d08               | mov                 ebx, dword ptr [ebp + 8]
            //   8bcb                 | mov                 ecx, ebx
            //   895db8               | mov                 dword ptr [ebp - 0x48], ebx

        $sequence_8 = { 81c65d020000 037338 8bc6 f77338 8b470c 2bc2 03c6 }
            // n = 7, score = 300
            //   81c65d020000         | add                 esi, 0x25d
            //   037338               | add                 esi, dword ptr [ebx + 0x38]
            //   8bc6                 | mov                 eax, esi
            //   f77338               | div                 dword ptr [ebx + 0x38]
            //   8b470c               | mov                 eax, dword ptr [edi + 0xc]
            //   2bc2                 | sub                 eax, edx
            //   03c6                 | add                 eax, esi

        $sequence_9 = { 8b8568fdffff 0408 3472 888574fdffff 8b8568fdffff 0409 888575fdffff }
            // n = 7, score = 300
            //   8b8568fdffff         | mov                 eax, dword ptr [ebp - 0x298]
            //   0408                 | add                 al, 8
            //   3472                 | xor                 al, 0x72
            //   888574fdffff         | mov                 byte ptr [ebp - 0x28c], al
            //   8b8568fdffff         | mov                 eax, dword ptr [ebp - 0x298]
            //   0409                 | add                 al, 9
            //   888575fdffff         | mov                 byte ptr [ebp - 0x28b], al

    condition:
        7 of them and filesize < 1482752
}