rule win_lolsnif_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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 = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { 3bfb 7418 8b471c 3bc3 7411 50 53 }
            // n = 7, score = 200
            //   3bfb                 | cmp                 edi, ebx
            //   7418                 | je                  0x1a
            //   8b471c               | mov                 eax, dword ptr [edi + 0x1c]
            //   3bc3                 | cmp                 eax, ebx
            //   7411                 | je                  0x13
            //   50                   | push                eax
            //   53                   | push                ebx

        $sequence_1 = { e8???????? 83c40c ff75e4 e8???????? 8b45fc 5e }
            // n = 6, score = 200
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   ff75e4               | push                dword ptr [ebp - 0x1c]
            //   e8????????           |                     
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   5e                   | pop                 esi

        $sequence_2 = { 50 ffd6 83c40c 03d8 a1???????? 85c0 741b }
            // n = 7, score = 200
            //   50                   | push                eax
            //   ffd6                 | call                esi
            //   83c40c               | add                 esp, 0xc
            //   03d8                 | add                 ebx, eax
            //   a1????????           |                     
            //   85c0                 | test                eax, eax
            //   741b                 | je                  0x1d

        $sequence_3 = { ff75f0 53 ff35???????? ff15???????? b8???????? 83c9ff f00fc108 }
            // n = 7, score = 200
            //   ff75f0               | push                dword ptr [ebp - 0x10]
            //   53                   | push                ebx
            //   ff35????????         |                     
            //   ff15????????         |                     
            //   b8????????           |                     
            //   83c9ff               | or                  ecx, 0xffffffff
            //   f00fc108             | lock xadd           dword ptr [eax], ecx

        $sequence_4 = { 72ea eb05 8364240c00 6a01 ffd6 837c240c00 7423 }
            // n = 7, score = 200
            //   72ea                 | jb                  0xffffffec
            //   eb05                 | jmp                 7
            //   8364240c00           | and                 dword ptr [esp + 0xc], 0
            //   6a01                 | push                1
            //   ffd6                 | call                esi
            //   837c240c00           | cmp                 dword ptr [esp + 0xc], 0
            //   7423                 | je                  0x25

        $sequence_5 = { 891d???????? 6a52 56 ff35???????? ff15???????? 3bc6 }
            // n = 6, score = 200
            //   891d????????         |                     
            //   6a52                 | push                0x52
            //   56                   | push                esi
            //   ff35????????         |                     
            //   ff15????????         |                     
            //   3bc6                 | cmp                 eax, esi

        $sequence_6 = { ff75f4 895df0 ff15???????? 85c0 }
            // n = 4, score = 200
            //   ff75f4               | push                dword ptr [ebp - 0xc]
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax

        $sequence_7 = { 8bc6 57 8bce e8???????? 8bcf 8bd6 e8???????? }
            // n = 7, score = 200
            //   8bc6                 | mov                 eax, esi
            //   57                   | push                edi
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   8bcf                 | mov                 ecx, edi
            //   8bd6                 | mov                 edx, esi
            //   e8????????           |                     

        $sequence_8 = { e8???????? 99 a3???????? 0bc2 8915???????? 7436 a1???????? }
            // n = 7, score = 200
            //   e8????????           |                     
            //   99                   | cdq                 
            //   a3????????           |                     
            //   0bc2                 | or                  eax, edx
            //   8915????????         |                     
            //   7436                 | je                  0x38
            //   a1????????           |                     

        $sequence_9 = { 8d442454 ff742418 e8???????? a1???????? 83c004 50 be???????? }
            // n = 7, score = 200
            //   8d442454             | lea                 eax, [esp + 0x54]
            //   ff742418             | push                dword ptr [esp + 0x18]
            //   e8????????           |                     
            //   a1????????           |                     
            //   83c004               | add                 eax, 4
            //   50                   | push                eax
            //   be????????           |                     

    condition:
        7 of them and filesize < 425984
}