rule win_agendacrypt_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-07-11"
        version = "1"
        description = "Detects win.agendacrypt."
        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.agendacrypt"
        malpedia_rule_date = "20230705"
        malpedia_hash = "42d0574f4405bd7d2b154d321d345acb18834a41"
        malpedia_version = "20230715"
        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 = { c3 8b45f0 8d4408ff 68???????? 6a28 50 e8???????? }
            // n = 7, score = 100
            //   c3                   | ret                 
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   8d4408ff             | lea                 eax, [eax + ecx - 1]
            //   68????????           |                     
            //   6a28                 | push                0x28
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_1 = { e9???????? 89f9 31d2 e8???????? 89c3 00db 89d8 }
            // n = 7, score = 100
            //   e9????????           |                     
            //   89f9                 | mov                 ecx, edi
            //   31d2                 | xor                 edx, edx
            //   e8????????           |                     
            //   89c3                 | mov                 ebx, eax
            //   00db                 | add                 bl, bl
            //   89d8                 | mov                 eax, ebx

        $sequence_2 = { c784240c0e000004000000 660fd69424100e0000 888c241d0e0000 ff7308 895c2428 ff33 8d8424a80d0000 }
            // n = 7, score = 100
            //   c784240c0e000004000000     | mov    dword ptr [esp + 0xe0c], 4
            //   660fd69424100e0000     | movq    qword ptr [esp + 0xe10], xmm2
            //   888c241d0e0000       | mov                 byte ptr [esp + 0xe1d], cl
            //   ff7308               | push                dword ptr [ebx + 8]
            //   895c2428             | mov                 dword ptr [esp + 0x28], ebx
            //   ff33                 | push                dword ptr [ebx]
            //   8d8424a80d0000       | lea                 eax, [esp + 0xda8]

        $sequence_3 = { c1c007 c1c215 89f1 8b75f0 31d0 89fa 894de4 }
            // n = 7, score = 100
            //   c1c007               | rol                 eax, 7
            //   c1c215               | rol                 edx, 0x15
            //   89f1                 | mov                 ecx, esi
            //   8b75f0               | mov                 esi, dword ptr [ebp - 0x10]
            //   31d0                 | xor                 eax, edx
            //   89fa                 | mov                 edx, edi
            //   894de4               | mov                 dword ptr [ebp - 0x1c], ecx

        $sequence_4 = { f20f118c248c010000 0f8455030000 8b942478010000 8bbc2480010000 f20f100d???????? 0f57c0 89b4242c010000 }
            // n = 7, score = 100
            //   f20f118c248c010000     | movsd    qword ptr [esp + 0x18c], xmm1
            //   0f8455030000         | je                  0x35b
            //   8b942478010000       | mov                 edx, dword ptr [esp + 0x178]
            //   8bbc2480010000       | mov                 edi, dword ptr [esp + 0x180]
            //   f20f100d????????     |                     
            //   0f57c0               | xorps               xmm0, xmm0
            //   89b4242c010000       | mov                 dword ptr [esp + 0x12c], esi

        $sequence_5 = { e8???????? 83c414 837c242000 7463 8b442428 f20f10442420 89442418 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   837c242000           | cmp                 dword ptr [esp + 0x20], 0
            //   7463                 | je                  0x65
            //   8b442428             | mov                 eax, dword ptr [esp + 0x28]
            //   f20f10442420         | movsd               xmm0, qword ptr [esp + 0x20]
            //   89442418             | mov                 dword ptr [esp + 0x18], eax

        $sequence_6 = { ff30 6a00 ff31 e8???????? 83c43c 5e 5f }
            // n = 7, score = 100
            //   ff30                 | push                dword ptr [eax]
            //   6a00                 | push                0
            //   ff31                 | push                dword ptr [ecx]
            //   e8????????           |                     
            //   83c43c               | add                 esp, 0x3c
            //   5e                   | pop                 esi
            //   5f                   | pop                 edi

        $sequence_7 = { c1e206 c5edfec3 8d9c24e0000000 c1e706 c5fd7f442440 01f8 01fe }
            // n = 7, score = 100
            //   c1e206               | shl                 edx, 6
            //   c5edfec3             | vpaddd              ymm0, ymm2, ymm3
            //   8d9c24e0000000       | lea                 ebx, [esp + 0xe0]
            //   c1e706               | shl                 edi, 6
            //   c5fd7f442440         | vmovdqa             ymmword ptr [esp + 0x40], ymm0
            //   01f8                 | add                 eax, edi
            //   01fe                 | add                 esi, edi

        $sequence_8 = { eb43 c1e006 83c302 31d2 09f0 895df0 89c1 }
            // n = 7, score = 100
            //   eb43                 | jmp                 0x45
            //   c1e006               | shl                 eax, 6
            //   83c302               | add                 ebx, 2
            //   31d2                 | xor                 edx, edx
            //   09f0                 | or                  eax, esi
            //   895df0               | mov                 dword ptr [ebp - 0x10], ebx
            //   89c1                 | mov                 ecx, eax

        $sequence_9 = { f20f5ec2 81c634010000 89f0 f7d8 0f48c6 3d35010000 73dc }
            // n = 7, score = 100
            //   f20f5ec2             | divsd               xmm0, xmm2
            //   81c634010000         | add                 esi, 0x134
            //   89f0                 | mov                 eax, esi
            //   f7d8                 | neg                 eax
            //   0f48c6               | cmovs               eax, esi
            //   3d35010000           | cmp                 eax, 0x135
            //   73dc                 | jae                 0xffffffde

    condition:
        7 of them and filesize < 3340288
}