rule win_toughprogress_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.toughprogress."
        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.toughprogress"
        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 = { 440f280d???????? 440f2815???????? 440f281d???????? 440f2825???????? 440f282d???????? 6666662e0f1f840000000000 f3440f107c0217 }
            // n = 7, score = 100
            //   440f280d????????     |                     
            //   440f2815????????     |                     
            //   440f281d????????     |                     
            //   440f2825????????     |                     
            //   440f282d????????     |                     
            //   6666662e0f1f840000000000     | dec    eax
            //   f3440f107c0217       | mov                 esi, ecx

        $sequence_1 = { 4c032411 48895dd8 4c89f1 4c89fa 4989c0 41ffd4 488b55f8 }
            // n = 7, score = 100
            //   4c032411             | dec                 esp
            //   48895dd8             | add                 ecx, dword ptr [eax + ecx]
            //   4c89f1               | dec                 ecx
            //   4c89fa               | mov                 edx, dword ptr [eax]
            //   4989c0               | dec                 eax
            //   41ffd4               | mov                 ecx, esi
            //   488b55f8             | dec                 eax

        $sequence_2 = { 89c2 80f20e 4189db 4180f361 34f1 4420d8 80f39e }
            // n = 7, score = 100
            //   89c2                 | inc                 ecx
            //   80f20e               | and                 edx, 0x5da300c4
            //   4189db               | inc                 ecx
            //   4180f361             | or                  edx, 0x200c802b
            //   34f1                 | mov                 ecx, eax
            //   4420d8               | not                 ecx
            //   80f39e               | mov                 edx, eax

        $sequence_3 = { 488d4b20 488b05???????? 48baf554c5b851c51d63 49b8db5381257b97c77a 4c030410 4889f2 41ffd0 }
            // n = 7, score = 100
            //   488d4b20             | dec                 eax
            //   488b05????????       |                     
            //   48baf554c5b851c51d63     | cmp    eax, edx
            //   49b8db5381257b97c77a     | jbe    0x626
            //   4c030410             | xor                 eax, eax
            //   4889f2               | dec                 eax
            //   41ffd0               | lea                 eax, [edx + 0x25]

        $sequence_4 = { 48b92101fe16591834e4 48bab0f1efb8ebe1c8ea 48031408 488b4de8 ffd2 90 4883c420 }
            // n = 7, score = 100
            //   48b92101fe16591834e4     | scasd    eax, dword ptr es:[edi]
            //   48bab0f1efb8ebe1c8ea     | std    
            //   48031408             | and                 eax, 0x48c80148
            //   488b4de8             | lea                 ecx, [ebp + 0x3f0]
            //   ffd2                 | call                eax
            //   90                   | nop                 
            //   4883c420             | dec                 eax

        $sequence_5 = { 488d35f5f30f00 488d0d0afb1000 4c01c2 ffd0 49bf4f9cdb6635605155 488b36 4c01fe }
            // n = 7, score = 100
            //   488d35f5f30f00       | lea                 edx, [0xb3bfa]
            //   488d0d0afb1000       | dec                 eax
            //   4c01c2               | lea                 ecx, [ebp - 1]
            //   ffd0                 | dec                 ebp
            //   49bf4f9cdb6635605155     | mov    eax, ebp
            //   488b36               | call                eax
            //   4c01fe               | mov                 eax, 7

        $sequence_6 = { 4983c104 4d39c8 75ea 4c39c1 7414 0f1f440000 488b0e }
            // n = 7, score = 100
            //   4983c104             | inc                 edi
            //   4d39c8               | mov                 ebx, dword ptr [edx + ebx*4 + 0x15e040]
            //   75ea                 | dec                 ecx
            //   4c39c1               | cmp                 eax, 0x100
            //   7414                 | jae                 0xf6
            //   0f1f440000           | dec                 ebp
            //   488b0e               | lea                 ecx, [eax + 0x1f]

        $sequence_7 = { 4c01f8 488d4dd8 4c89f2 ffd0 84db 0f8591000000 488d5f70 }
            // n = 7, score = 100
            //   4c01f8               | add                 eax, edi
            //   488d4dd8             | dec                 eax
            //   4c89f2               | mov                 ecx, edi
            //   ffd0                 | call                eax
            //   84db                 | dec                 ecx
            //   0f8591000000         | mov                 esi, eax
            //   488d5f70             | dec                 eax

        $sequence_8 = { ffd0 488d5e40 488b4e68 0fb65678 488b05???????? 49b80ee5f89dd0779459 4a8b0400 }
            // n = 7, score = 100
            //   ffd0                 | mov                 ebx, 0x10048b48
            //   488d5e40             | dec                 eax
            //   488b4e68             | mov                 edx, 0x7443b97b
            //   0fb65678             | dec                 eax
            //   488b05????????       |                     
            //   49b80ee5f89dd0779459     | cld    
            //   4a8b0400             | xor                 edx, dword ptr [ebp - 0x2ffeb8]

        $sequence_9 = { 4989f0 4989c1 ffd2 488b05???????? 49be8b72da7706fe2b4a 4c01f0 488dbd20020000 }
            // n = 7, score = 100
            //   4989f0               | test                al, al
            //   4989c1               | jne                 0x26f
            //   ffd2                 | mov                 eax, dword ptr [esi + 0x80]
            //   488b05????????       |                     
            //   49be8b72da7706fe2b4a     | mov    ecx, eax
            //   4c01f0               | and                 ecx, 0xa9de4776
            //   488dbd20020000       | or                  ecx, 0x620b080

    condition:
        7 of them and filesize < 3117056
}