rule win_chrgetpdsi_stealer_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-05-04"
        version = "1"
        description = "Detects win.chrgetpdsi_stealer."
        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.chrgetpdsi_stealer"
        malpedia_rule_date = "20260422"
        malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
        malpedia_version = "20260504"
        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 = { 803800 7532 488b5008 4889d9 48c1eb06 660f1f440000 48395810 }
            // n = 7, score = 500
            //   803800               | mov                 ecx, edi
            //   7532                 | inc                 ecx
            //   488b5008             | mov                 dword ptr [edi + 0x38], 2
            //   4889d9               | dec                 eax
            //   48c1eb06             | mov                 ecx, ebp
            //   660f1f440000         | inc                 ecx
            //   48395810             | mov                 eax, 1

        $sequence_1 = { ffd2 488b4c2478 488b5940 488b5148 488d05723b1400 4889d1 e8???????? }
            // n = 7, score = 500
            //   ffd2                 | sub                 esp, 0x38
            //   488b4c2478           | dec                 eax
            //   488b5940             | mov                 dword ptr [esp + 0x30], ebp
            //   488b5148             | dec                 eax
            //   488d05723b1400       | lea                 ebp, [esp + 0x30]
            //   4889d1               | dec                 ebp
            //   e8????????           |                     

        $sequence_2 = { c3 e8???????? e8???????? 488d0548981800 488d1d31832000 90 e8???????? }
            // n = 7, score = 500
            //   c3                   | lea                 ecx, [0x4a54]
            //   e8????????           |                     
            //   e8????????           |                     
            //   488d0548981800       | dec                 eax
            //   488d1d31832000       | mov                 dword ptr [eax], ecx
            //   90                   | dec                 eax
            //   e8????????           |                     

        $sequence_3 = { e8???????? 488b0d???????? 48898c24a8060000 488d05734e1900 e8???????? 833d????????00 750e }
            // n = 7, score = 500
            //   e8????????           |                     
            //   488b0d????????       |                     
            //   48898c24a8060000     | je                  0x99b
            //   488d05734e1900       | inc                 esp
            //   e8????????           |                     
            //   833d????????00       |                     
            //   750e                 | movups              xmmword ptr [esp + 0x150], xmm7

        $sequence_4 = { 85db 754d 8b5920 4863411c 85c0 7924 48f7d8 }
            // n = 7, score = 500
            //   85db                 | dec                 eax
            //   754d                 | mov                 edx, dword ptr [ecx + 0x88]
            //   8b5920               | dec                 esp
            //   4863411c             | mov                 esp, dword ptr [ecx + 0x38]
            //   85c0                 | inc                 ebp
            //   7924                 | movzx               eax, bp
            //   48f7d8               | dec                 eax

        $sequence_5 = { e9???????? c70301000000 458b4c2458 89442430 4585c9 0f85cdfdffff 31c9 }
            // n = 7, score = 500
            //   e9????????           |                     
            //   c70301000000         | dec                 eax
            //   458b4c2458           | sub                 edx, eax
            //   89442430             | dec                 eax
            //   4585c9               | shl                 edx, 4
            //   0f85cdfdffff         | dec                 eax
            //   31c9                 | cmp                 dword ptr [esi + edx + 0x3a8], 0

        $sequence_6 = { e9???????? 488d15d94f2300 48895068 e9???????? 488d15c14f2300 48895070 4889d0 }
            // n = 7, score = 500
            //   e9????????           |                     
            //   488d15d94f2300       | dec                 ecx
            //   48895068             | lea                 eax, [eax - 1]
            //   e9????????           |                     
            //   488d15c14f2300       | dec                 eax
            //   48895070             | cmp                 edi, eax
            //   4889d0               | jb                  0x154d

        $sequence_7 = { e8???????? 488b442438 488b5c2428 e8???????? 488d0584982e00 bb0f000000 e8???????? }
            // n = 7, score = 500
            //   e8????????           |                     
            //   488b442438           | mov                 ecx, dword ptr [esp + 0x20]
            //   488b5c2428           | dec                 eax
            //   e8????????           |                     
            //   488d0584982e00       | mov                 dword ptr [esp], ecx
            //   bb0f000000           | inc                 esp
            //   e8????????           |                     

        $sequence_8 = { f30f6f6810 410f116a18 f30f6f6020 410f116228 f30f6f6830 410f116a38 f30f6f6040 }
            // n = 7, score = 500
            //   f30f6f6810           | mov                 edx, dword ptr [esp + 0x218]
            //   410f116a18           | dec                 eax
            //   f30f6f6020           | mov                 ecx, ebx
            //   410f116228           | dec                 eax
            //   f30f6f6830           | mov                 dword ptr [esp + 0x148], 0
            //   410f116a38           | mov                 dword ptr [esp + 0x128], 0
            //   f30f6f6040           | inc                 esp

        $sequence_9 = { 81f992d74abd 0f8783000000 0f1f00 81f90241adbb 7538 488d0d911c2c00 4839c8 }
            // n = 7, score = 500
            //   81f992d74abd         | mov                 eax, ecx
            //   0f8783000000         | dec                 eax
            //   0f1f00               | lea                 ecx, [0x161652]
            //   81f90241adbb         | dec                 eax
            //   7538                 | mov                 eax, dword ptr [ecx]
            //   488d0d911c2c00       | dec                 eax
            //   4839c8               | mov                 ebx, dword ptr [ecx + 8]

    condition:
        7 of them and filesize < 10027008
}