rule win_sidewinder_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.sidewinder."
        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.sidewinder"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { ff75d8 e8???????? 8945b4 eb04 8365b400 8b4508 8a4de0 }
            // n = 7, score = 200
            //   ff75d8               | push                dword ptr [ebp - 0x28]
            //   e8????????           |                     
            //   8945b4               | mov                 dword ptr [ebp - 0x4c], eax
            //   eb04                 | jmp                 6
            //   8365b400             | and                 dword ptr [ebp - 0x4c], 0
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8a4de0               | mov                 cl, byte ptr [ebp - 0x20]

        $sequence_1 = { f7d8 668945e0 8b4508 8b4040 83e004 f7d8 1bc0 }
            // n = 7, score = 200
            //   f7d8                 | neg                 eax
            //   668945e0             | mov                 word ptr [ebp - 0x20], ax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b4040               | mov                 eax, dword ptr [eax + 0x40]
            //   83e004               | and                 eax, 4
            //   f7d8                 | neg                 eax
            //   1bc0                 | sbb                 eax, eax

        $sequence_2 = { 8d459c 50 0fbf45ec 50 ff35???????? e8???????? }
            // n = 6, score = 200
            //   8d459c               | lea                 eax, [ebp - 0x64]
            //   50                   | push                eax
            //   0fbf45ec             | movsx               eax, word ptr [ebp - 0x14]
            //   50                   | push                eax
            //   ff35????????         |                     
            //   e8????????           |                     

        $sequence_3 = { 8b4508 8b00 ff7508 ff5004 8b5510 8d4de8 e8???????? }
            // n = 7, score = 200
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff5004               | call                dword ptr [eax + 4]
            //   8b5510               | mov                 edx, dword ptr [ebp + 0x10]
            //   8d4de8               | lea                 ecx, [ebp - 0x18]
            //   e8????????           |                     

        $sequence_4 = { e8???????? 894584 eb04 83658400 e9???????? ff35???????? 6a01 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   894584               | mov                 dword ptr [ebp - 0x7c], eax
            //   eb04                 | jmp                 6
            //   83658400             | and                 dword ptr [ebp - 0x7c], 0
            //   e9????????           |                     
            //   ff35????????         |                     
            //   6a01                 | push                1

        $sequence_5 = { ffb5f8fcffff 8d85f4fcffff 50 e8???????? 8d8500fdffff 50 6a00 }
            // n = 7, score = 200
            //   ffb5f8fcffff         | push                dword ptr [ebp - 0x308]
            //   8d85f4fcffff         | lea                 eax, [ebp - 0x30c]
            //   50                   | push                eax
            //   e8????????           |                     
            //   8d8500fdffff         | lea                 eax, [ebp - 0x300]
            //   50                   | push                eax
            //   6a00                 | push                0

        $sequence_6 = { 6880000000 e8???????? 83c41c c745fc04000000 c78504ffffff1f000000 ff75bc 8d458c }
            // n = 7, score = 200
            //   6880000000           | push                0x80
            //   e8????????           |                     
            //   83c41c               | add                 esp, 0x1c
            //   c745fc04000000       | mov                 dword ptr [ebp - 4], 4
            //   c78504ffffff1f000000     | mov    dword ptr [ebp - 0xfc], 0x1f
            //   ff75bc               | push                dword ptr [ebp - 0x44]
            //   8d458c               | lea                 eax, [ebp - 0x74]

        $sequence_7 = { 7309 83a5f0feffff00 eb0b e8???????? 8985f0feffff 8b45e4 }
            // n = 6, score = 200
            //   7309                 | jae                 0xb
            //   83a5f0feffff00       | and                 dword ptr [ebp - 0x110], 0
            //   eb0b                 | jmp                 0xd
            //   e8????????           |                     
            //   8985f0feffff         | mov                 dword ptr [ebp - 0x110], eax
            //   8b45e4               | mov                 eax, dword ptr [ebp - 0x1c]

        $sequence_8 = { 662d0100 7075 0fbfc0 50 6a01 6a11 68???????? }
            // n = 7, score = 200
            //   662d0100             | sub                 ax, 1
            //   7075                 | jo                  0x77
            //   0fbfc0               | movsx               eax, ax
            //   50                   | push                eax
            //   6a01                 | push                1
            //   6a11                 | push                0x11
            //   68????????           |                     

        $sequence_9 = { 83a548ffffff00 8d8548ffffff 50 8d45e8 50 6a02 e8???????? }
            // n = 7, score = 200
            //   83a548ffffff00       | and                 dword ptr [ebp - 0xb8], 0
            //   8d8548ffffff         | lea                 eax, [ebp - 0xb8]
            //   50                   | push                eax
            //   8d45e8               | lea                 eax, [ebp - 0x18]
            //   50                   | push                eax
            //   6a02                 | push                2
            //   e8????????           |                     

    condition:
        7 of them and filesize < 679936
}