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 (20220808 | Detects win.glitch_pos.)
rule win_glitch_pos_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        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 = "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 = { ff5038 dbe2 8985ecfeffff 83bdecfeffff00 7d20 6a38 68???????? }
            // n = 7, score = 100
            //   ff5038               | call                dword ptr [eax + 0x38]
            //   dbe2                 | fnclex              
            //   8985ecfeffff         | mov                 dword ptr [ebp - 0x114], eax
            //   83bdecfeffff00       | cmp                 dword ptr [ebp - 0x114], 0
            //   7d20                 | jge                 0x22
            //   6a38                 | push                0x38
            //   68????????           |                     

        $sequence_1 = { 7587 c745fc08000000 c78534ffffff01000000 c7852cffffff02000000 c78524ffffff1d010000 }
            // n = 5, score = 100
            //   7587                 | jne                 0xffffff89
            //   c745fc08000000       | mov                 dword ptr [ebp - 4], 8
            //   c78534ffffff01000000     | mov    dword ptr [ebp - 0xcc], 1
            //   c7852cffffff02000000     | mov    dword ptr [ebp - 0xd4], 2
            //   c78524ffffff1d010000     | mov    dword ptr [ebp - 0xdc], 0x11d

        $sequence_2 = { ff9010030000 50 8d45cc 50 e8???????? 8985f0feffff }
            // n = 6, score = 100
            //   ff9010030000         | call                dword ptr [eax + 0x310]
            //   50                   | push                eax
            //   8d45cc               | lea                 eax, [ebp - 0x34]
            //   50                   | push                eax
            //   e8????????           |                     
            //   8985f0feffff         | mov                 dword ptr [ebp - 0x110], eax

        $sequence_3 = { 83a538ffffff00 8d4dd8 e8???????? 8d4dd0 e8???????? 8d4590 50 }
            // n = 7, score = 100
            //   83a538ffffff00       | and                 dword ptr [ebp - 0xc8], 0
            //   8d4dd8               | lea                 ecx, [ebp - 0x28]
            //   e8????????           |                     
            //   8d4dd0               | lea                 ecx, [ebp - 0x30]
            //   e8????????           |                     
            //   8d4590               | lea                 eax, [ebp - 0x70]
            //   50                   | push                eax

        $sequence_4 = { 8985f0feffff 8d45c8 50 6a03 8b85f0feffff 8b00 ffb5f0feffff }
            // n = 7, score = 100
            //   8985f0feffff         | mov                 dword ptr [ebp - 0x110], eax
            //   8d45c8               | lea                 eax, [ebp - 0x38]
            //   50                   | push                eax
            //   6a03                 | push                3
            //   8b85f0feffff         | mov                 eax, dword ptr [ebp - 0x110]
            //   8b00                 | mov                 eax, dword ptr [eax]
            //   ffb5f0feffff         | push                dword ptr [ebp - 0x110]

        $sequence_5 = { 8d45ec 8945bc c745b402400000 6a01 6a01 8d45d4 }
            // n = 6, score = 100
            //   8d45ec               | lea                 eax, [ebp - 0x14]
            //   8945bc               | mov                 dword ptr [ebp - 0x44], eax
            //   c745b402400000       | mov                 dword ptr [ebp - 0x4c], 0x4002
            //   6a01                 | push                1
            //   6a01                 | push                1
            //   8d45d4               | lea                 eax, [ebp - 0x2c]

        $sequence_6 = { 50 e8???????? 8d55b0 8d4ddc e8???????? 8b4508 }
            // n = 6, score = 100
            //   50                   | push                eax
            //   e8????????           |                     
            //   8d55b0               | lea                 edx, [ebp - 0x50]
            //   8d4ddc               | lea                 ecx, [ebp - 0x24]
            //   e8????????           |                     
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]

        $sequence_7 = { ff9018030000 50 8d45bc 50 e8???????? 8985d0feffff 8d45b8 }
            // n = 7, score = 100
            //   ff9018030000         | call                dword ptr [eax + 0x318]
            //   50                   | push                eax
            //   8d45bc               | lea                 eax, [ebp - 0x44]
            //   50                   | push                eax
            //   e8????????           |                     
            //   8985d0feffff         | mov                 dword ptr [ebp - 0x130], eax
            //   8d45b8               | lea                 eax, [ebp - 0x48]

        $sequence_8 = { c745fc11000000 83a534ffffff00 c7852cffffff02000000 8d952cffffff 8d4d9c e8???????? }
            // n = 6, score = 100
            //   c745fc11000000       | mov                 dword ptr [ebp - 4], 0x11
            //   83a534ffffff00       | and                 dword ptr [ebp - 0xcc], 0
            //   c7852cffffff02000000     | mov    dword ptr [ebp - 0xd4], 2
            //   8d952cffffff         | lea                 edx, [ebp - 0xd4]
            //   8d4d9c               | lea                 ecx, [ebp - 0x64]
            //   e8????????           |                     

        $sequence_9 = { ff9020030000 50 8d45b0 50 }
            // n = 4, score = 100
            //   ff9020030000         | call                dword ptr [eax + 0x320]
            //   50                   | push                eax
            //   8d45b0               | lea                 eax, [ebp - 0x50]
            //   50                   | push                eax

    condition:
        7 of them and filesize < 1024000
}
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