SYMBOLCOMMON_NAMEaka. SYNONYMS
win.glitch_pos (Back to overview)

GlitchPOS


There is no description at this point.

References
2019-03-13Cisco TalosWarren Mercer, Paul Rascagnères, Ben Baker
@online{mercer:20190313:glitchpos:a94f15c, author = {Warren Mercer and Paul Rascagnères and Ben Baker}, title = {{GlitchPOS: New PoS malware for sale}}, date = {2019-03-13}, organization = {Cisco Talos}, url = {https://blog.talosintelligence.com/2019/03/glitchpos-new-pos-malware-for-sale.html}, language = {English}, urldate = {2019-10-29} } GlitchPOS: New PoS malware for sale
GlitchPOS
Yara Rules
[TLP:WHITE] win_glitch_pos_auto (20230125 | Detects win.glitch_pos.)
rule win_glitch_pos_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.glitch_pos."
        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.glitch_pos"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { ffb504ffffff e8???????? 89855cfeffff eb07 }
            // n = 4, score = 100
            //   ffb504ffffff         | push                dword ptr [ebp - 0xfc]
            //   e8????????           |                     
            //   89855cfeffff         | mov                 dword ptr [ebp - 0x1a4], eax
            //   eb07                 | jmp                 9

        $sequence_1 = { c745fc01000000 8b550c 8d4dbc e8???????? 8b4514 }
            // n = 5, score = 100
            //   c745fc01000000       | mov                 dword ptr [ebp - 4], 1
            //   8b550c               | mov                 edx, dword ptr [ebp + 0xc]
            //   8d4dbc               | lea                 ecx, [ebp - 0x44]
            //   e8????????           |                     
            //   8b4514               | mov                 eax, dword ptr [ebp + 0x14]

        $sequence_2 = { 50 8b8508feffff 8b00 ffb508feffff ff9088000000 dbe2 898504feffff }
            // n = 7, score = 100
            //   50                   | push                eax
            //   8b8508feffff         | mov                 eax, dword ptr [ebp - 0x1f8]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   ffb508feffff         | push                dword ptr [ebp - 0x1f8]
            //   ff9088000000         | call                dword ptr [eax + 0x88]
            //   dbe2                 | fnclex              
            //   898504feffff         | mov                 dword ptr [ebp - 0x1fc], eax

        $sequence_3 = { 8b450c 33c9 66833800 0f9dc1 8b4510 33d2 }
            // n = 6, score = 100
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   33c9                 | xor                 ecx, ecx
            //   66833800             | cmp                 word ptr [eax], 0
            //   0f9dc1               | setge               cl
            //   8b4510               | mov                 eax, dword ptr [ebp + 0x10]
            //   33d2                 | xor                 edx, edx

        $sequence_4 = { c745fc03000000 8d855cffffff 50 8d45bc 50 8b4508 }
            // n = 6, score = 100
            //   c745fc03000000       | mov                 dword ptr [ebp - 4], 3
            //   8d855cffffff         | lea                 eax, [ebp - 0xa4]
            //   50                   | push                eax
            //   8d45bc               | lea                 eax, [ebp - 0x44]
            //   50                   | push                eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]

        $sequence_5 = { e8???????? 83c414 0fbf85f0feffff 85c0 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   0fbf85f0feffff       | movsx               eax, word ptr [ebp - 0x110]
            //   85c0                 | test                eax, eax

        $sequence_6 = { ff9028070000 833d????????00 751b 68???????? 68???????? e8???????? c785dcfeffff2cc34600 }
            // n = 7, score = 100
            //   ff9028070000         | call                dword ptr [eax + 0x728]
            //   833d????????00       |                     
            //   751b                 | jne                 0x1d
            //   68????????           |                     
            //   68????????           |                     
            //   e8????????           |                     
            //   c785dcfeffff2cc34600     | mov    dword ptr [ebp - 0x124], 0x46c32c

        $sequence_7 = { ff90e8010000 dbe2 8945e0 837de000 7d1a 68e8010000 68???????? }
            // n = 7, score = 100
            //   ff90e8010000         | call                dword ptr [eax + 0x1e8]
            //   dbe2                 | fnclex              
            //   8945e0               | mov                 dword ptr [ebp - 0x20], eax
            //   837de000             | cmp                 dword ptr [ebp - 0x20], 0
            //   7d1a                 | jge                 0x1c
            //   68e8010000           | push                0x1e8
            //   68????????           |                     

        $sequence_8 = { c78514ffffff0a000000 c7852cffffff04000280 c78524ffffff0a000000 c7853cffffff18000000 c78534ffffff02000000 6a10 58 }
            // n = 7, score = 100
            //   c78514ffffff0a000000     | mov    dword ptr [ebp - 0xec], 0xa
            //   c7852cffffff04000280     | mov    dword ptr [ebp - 0xd4], 0x80020004
            //   c78524ffffff0a000000     | mov    dword ptr [ebp - 0xdc], 0xa
            //   c7853cffffff18000000     | mov    dword ptr [ebp - 0xc4], 0x18
            //   c78534ffffff02000000     | mov    dword ptr [ebp - 0xcc], 2
            //   6a10                 | push                0x10
            //   58                   | pop                 eax

        $sequence_9 = { 8d45cc 50 6a02 e8???????? 83c40c 8d8584feffff 50 }
            // n = 7, score = 100
            //   8d45cc               | lea                 eax, [ebp - 0x34]
            //   50                   | push                eax
            //   6a02                 | push                2
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d8584feffff         | lea                 eax, [ebp - 0x17c]
            //   50                   | push                eax

    condition:
        7 of them and filesize < 1024000
}
Download all Yara Rules