rule win_zeus_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.zeus"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { eb58 833f00 7651 8b5f08 }
            // n = 4, score = 700
            //   eb58                 | jmp                 0x5a
            //   833f00               | cmp                 dword ptr [edi], 0
            //   7651                 | jbe                 0x53
            //   8b5f08               | mov                 ebx, dword ptr [edi + 8]

        $sequence_1 = { 3b45ec 0f832affffff 80fb0d 0f8521ffffff 8b45f0 807c02010a 0f8513ffffff }
            // n = 7, score = 600
            //   3b45ec               | cmp                 eax, dword ptr [ebp - 0x14]
            //   0f832affffff         | jae                 0xffffff30
            //   80fb0d               | cmp                 bl, 0xd
            //   0f8521ffffff         | jne                 0xffffff27
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   807c02010a           | cmp                 byte ptr [edx + eax + 1], 0xa
            //   0f8513ffffff         | jne                 0xffffff19

        $sequence_2 = { 7703 80c120 80f923 750b 3b7dfc 0f8440010000 eb25 }
            // n = 7, score = 600
            //   7703                 | ja                  5
            //   80c120               | add                 cl, 0x20
            //   80f923               | cmp                 cl, 0x23
            //   750b                 | jne                 0xd
            //   3b7dfc               | cmp                 edi, dword ptr [ebp - 4]
            //   0f8440010000         | je                  0x146
            //   eb25                 | jmp                 0x27

        $sequence_3 = { 7420 ff750c a1???????? 56 53 }
            // n = 5, score = 600
            //   7420                 | je                  0x22
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   a1????????           |                     
            //   56                   | push                esi
            //   53                   | push                ebx

        $sequence_4 = { f6451801 0f8458ffffff 8b45f8 3b450c 731a 80f90d 7515 }
            // n = 7, score = 600
            //   f6451801             | test                byte ptr [ebp + 0x18], 1
            //   0f8458ffffff         | je                  0xffffff5e
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   3b450c               | cmp                 eax, dword ptr [ebp + 0xc]
            //   731a                 | jae                 0x1c
            //   80f90d               | cmp                 cl, 0xd
            //   7515                 | jne                 0x17

        $sequence_5 = { 72a9 5e 5b c3 8d8618020000 }
            // n = 5, score = 600
            //   72a9                 | jb                  0xffffffab
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   c3                   | ret                 
            //   8d8618020000         | lea                 eax, [esi + 0x218]

        $sequence_6 = { 8d45fc 50 ff7568 ff15???????? 85c0 }
            // n = 5, score = 600
            //   8d45fc               | lea                 eax, [ebp - 4]
            //   50                   | push                eax
            //   ff7568               | push                dword ptr [ebp + 0x68]
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax

        $sequence_7 = { 5e 5b c9 c20400 668b45e9 }
            // n = 5, score = 600
            //   5e                   | pop                 esi
            //   5b                   | pop                 ebx
            //   c9                   | leave               
            //   c20400               | ret                 4
            //   668b45e9             | mov                 ax, word ptr [ebp - 0x17]

        $sequence_8 = { 891d???????? 891d???????? ffd6 68???????? }
            // n = 4, score = 500
            //   891d????????         |                     
            //   891d????????         |                     
            //   ffd6                 | call                esi
            //   68????????           |                     

        $sequence_9 = { 8bf3 6810270000 ff35???????? ff15???????? }
            // n = 4, score = 500
            //   8bf3                 | mov                 esi, ebx
            //   6810270000           | push                0x2710
            //   ff35????????         |                     
            //   ff15????????         |                     

        $sequence_10 = { e8???????? 84c0 7442 6a10 }
            // n = 4, score = 500
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7442                 | je                  0x44
            //   6a10                 | push                0x10

        $sequence_11 = { 8d8db0fdffff e8???????? 8ad8 84db }
            // n = 4, score = 400
            //   8d8db0fdffff         | lea                 ecx, [ebp - 0x250]
            //   e8????????           |                     
            //   8ad8                 | mov                 bl, al
            //   84db                 | test                bl, bl

        $sequence_12 = { c20400 55 8bec f6451802 }
            // n = 4, score = 300
            //   c20400               | ret                 4
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   f6451802             | test                byte ptr [ebp + 0x18], 2

        $sequence_13 = { 8ac3 5b c20800 55 8bec 83e4f8 }
            // n = 6, score = 300
            //   8ac3                 | mov                 al, bl
            //   5b                   | pop                 ebx
            //   c20800               | ret                 8
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   83e4f8               | and                 esp, 0xfffffff8

        $sequence_14 = { 56 ff15???????? 5e 8ac3 5b c20800 }
            // n = 6, score = 300
            //   56                   | push                esi
            //   ff15????????         |                     
            //   5e                   | pop                 esi
            //   8ac3                 | mov                 al, bl
            //   5b                   | pop                 ebx
            //   c20800               | ret                 8

        $sequence_15 = { b364 6a14 eb18 81fb5a5c4156 }
            // n = 4, score = 200
            //   b364                 | mov                 bl, 0x64
            //   6a14                 | push                0x14
            //   eb18                 | jmp                 0x1a
            //   81fb5a5c4156         | cmp                 ebx, 0x56415c5a

        $sequence_16 = { 81fb5d515047 7410 81fb4f4d4156 7408 81fb59495354 7506 }
            // n = 6, score = 200
            //   81fb5d515047         | cmp                 ebx, 0x4750515d
            //   7410                 | je                  0x12
            //   81fb4f4d4156         | cmp                 ebx, 0x56414d4f
            //   7408                 | je                  0xa
            //   81fb59495354         | cmp                 ebx, 0x54534959
            //   7506                 | jne                 8

        $sequence_17 = { 81fb45415356 0f85b2000000 b365 6a15 }
            // n = 4, score = 200
            //   81fb45415356         | cmp                 ebx, 0x56534145
            //   0f85b2000000         | jne                 0xb8
            //   b365                 | mov                 bl, 0x65
            //   6a15                 | push                0x15

        $sequence_18 = { 83fe04 0f82ec000000 8b1b 81f309080002 81fb5d515047 7410 81fb4f4d4156 }
            // n = 7, score = 200
            //   83fe04               | cmp                 esi, 4
            //   0f82ec000000         | jb                  0xf2
            //   8b1b                 | mov                 ebx, dword ptr [ebx]
            //   81f309080002         | xor                 ebx, 0x2000809
            //   81fb5d515047         | cmp                 ebx, 0x4750515d
            //   7410                 | je                  0x12
            //   81fb4f4d4156         | cmp                 ebx, 0x56414d4f

        $sequence_19 = { b809080002 3945f4 7713 807d0801 0f8598000000 3945f4 0f828f000000 }
            // n = 7, score = 200
            //   b809080002           | mov                 eax, 0x2000809
            //   3945f4               | cmp                 dword ptr [ebp - 0xc], eax
            //   7713                 | ja                  0x15
            //   807d0801             | cmp                 byte ptr [ebp + 8], 1
            //   0f8598000000         | jne                 0x9e
            //   3945f4               | cmp                 dword ptr [ebp - 0xc], eax
            //   0f828f000000         | jb                  0x95

        $sequence_20 = { 68e6010000 68???????? 6809080002 8bc6 }
            // n = 4, score = 200
            //   68e6010000           | push                0x1e6
            //   68????????           |                     
            //   6809080002           | push                0x2000809
            //   8bc6                 | mov                 eax, esi

        $sequence_21 = { c745f809080002 e8???????? 8ad8 f6450c04 }
            // n = 4, score = 200
            //   c745f809080002       | mov                 dword ptr [ebp - 8], 0x2000809
            //   e8????????           |                     
            //   8ad8                 | mov                 bl, al
            //   f6450c04             | test                byte ptr [ebp + 0xc], 4

        $sequence_22 = { b001 5b 8be5 5d c3 66833d????????00 56 }
            // n = 7, score = 200
            //   b001                 | mov                 al, 1
            //   5b                   | pop                 ebx
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   66833d????????00     |                     
            //   56                   | push                esi

    condition:
        7 of them and filesize < 319488
}