rule win_lolsnif_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.lolsnif."
        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.lolsnif"
        malpedia_rule_date = "20221118"
        malpedia_hash = "e0702e2e6d1d00da65c8a29a4ebacd0a4c59e1af"
        malpedia_version = "20221125"
        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 = { ff35???????? ff75f8 e8???????? 3bc7 8b1d???????? 8945f4 7510 }
            // n = 7, score = 200
            //   ff35????????         |                     
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   e8????????           |                     
            //   3bc7                 | cmp                 eax, edi
            //   8b1d????????         |                     
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   7510                 | jne                 0x12

        $sequence_1 = { bf18030000 57 e8???????? 8bf0 85f6 744c 57 }
            // n = 7, score = 200
            //   bf18030000           | mov                 edi, 0x318
            //   57                   | push                edi
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   85f6                 | test                esi, esi
            //   744c                 | je                  0x4e
            //   57                   | push                edi

        $sequence_2 = { ab 0f8497000000 381e 0f848f000000 395d14 8b3d???????? 8b1d???????? }
            // n = 7, score = 200
            //   ab                   | stosd               dword ptr es:[edi], eax
            //   0f8497000000         | je                  0x9d
            //   381e                 | cmp                 byte ptr [esi], bl
            //   0f848f000000         | je                  0x95
            //   395d14               | cmp                 dword ptr [ebp + 0x14], ebx
            //   8b3d????????         |                     
            //   8b1d????????         |                     

        $sequence_3 = { c21c00 56 57 ff74240c e8???????? 8bf0 85f6 }
            // n = 7, score = 200
            //   c21c00               | ret                 0x1c
            //   56                   | push                esi
            //   57                   | push                edi
            //   ff74240c             | push                dword ptr [esp + 0xc]
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   85f6                 | test                esi, esi

        $sequence_4 = { 35885af3aa 50 8bd3 e8???????? 8bf0 85f6 742f }
            // n = 7, score = 200
            //   35885af3aa           | xor                 eax, 0xaaf35a88
            //   50                   | push                eax
            //   8bd3                 | mov                 edx, ebx
            //   e8????????           |                     
            //   8bf0                 | mov                 esi, eax
            //   85f6                 | test                esi, esi
            //   742f                 | je                  0x31

        $sequence_5 = { 8d461c 50 e8???????? 837e2000 741f ff15???????? 394624 }
            // n = 7, score = 200
            //   8d461c               | lea                 eax, [esi + 0x1c]
            //   50                   | push                eax
            //   e8????????           |                     
            //   837e2000             | cmp                 dword ptr [esi + 0x20], 0
            //   741f                 | je                  0x21
            //   ff15????????         |                     
            //   394624               | cmp                 dword ptr [esi + 0x24], eax

        $sequence_6 = { 5d c21000 ff25???????? a1???????? 69c00d661900 }
            // n = 5, score = 200
            //   5d                   | pop                 ebp
            //   c21000               | ret                 0x10
            //   ff25????????         |                     
            //   a1????????           |                     
            //   69c00d661900         | imul                eax, eax, 0x19660d

        $sequence_7 = { ff742414 e8???????? 8b0d???????? 89442428 83c158 83caff f00fc111 }
            // n = 7, score = 200
            //   ff742414             | push                dword ptr [esp + 0x14]
            //   e8????????           |                     
            //   8b0d????????         |                     
            //   89442428             | mov                 dword ptr [esp + 0x28], eax
            //   83c158               | add                 ecx, 0x58
            //   83caff               | or                  edx, 0xffffffff
            //   f00fc111             | lock xadd           dword ptr [ecx], edx

        $sequence_8 = { 0f85bd000000 a1???????? 35fb18a426 50 }
            // n = 4, score = 200
            //   0f85bd000000         | jne                 0xc3
            //   a1????????           |                     
            //   35fb18a426           | xor                 eax, 0x26a418fb
            //   50                   | push                eax

        $sequence_9 = { 57 ff75fc e8???????? 85c0 8945f4 753e }
            // n = 6, score = 200
            //   57                   | push                edi
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   e8????????           |                     
            //   85c0                 | test                eax, eax
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   753e                 | jne                 0x40

    condition:
        7 of them and filesize < 425984
}