SYMBOLCOMMON_NAMEaka. SYNONYMS
win.pipemon (Back to overview)

PipeMon

Actor(s): Winnti Umbrella


There is no description at this point.

References
2022-03-24Twitter (@ESETresearch)ESET Research
@online{research:20220324:pipemon:351014e, author = {ESET Research}, title = {{Tweet on PipeMon variants by Winnti Group}}, date = {2022-03-24}, organization = {Twitter (@ESETresearch)}, url = {https://twitter.com/ESETresearch/status/1506904404225630210}, language = {English}, urldate = {2022-03-30} } Tweet on PipeMon variants by Winnti Group
PipeMon
2020-05-21ESET ResearchMathieu Tartare, Martin Smolár
@online{tartare:20200521:no:016fc6c, author = {Mathieu Tartare and Martin Smolár}, title = {{No “Game over” for the Winnti Group}}, date = {2020-05-21}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2020/05/21/no-game-over-winnti-group/}, language = {English}, urldate = {2020-05-23} } No “Game over” for the Winnti Group
ACEHASH HTran MimiKatz PipeMon
Yara Rules
[TLP:WHITE] win_pipemon_auto (20221125 | Detects win.pipemon.)
rule win_pipemon_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.pipemon."
        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.pipemon"
        malpedia_rule_date = "20221118"
        malpedia_hash = "e0702e2e6d1d00da65c8a29a4ebacd0a4c59e1af"
        malpedia_version = "20221125"
        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 = { 4c89bc24a0000000 e9???????? 81f95d68fa3c 0f85a3000000 4d8b5620 41bfffff0000 4963423c }
            // n = 7, score = 100
            //   4c89bc24a0000000     | jne                 0xab
            //   e9????????           |                     
            //   81f95d68fa3c         | inc                 esp
            //   0f85a3000000         | mov                 eax, eax
            //   4d8b5620             | dec                 eax
            //   41bfffff0000         | lea                 edx, [0x1fbba]
            //   4963423c             | dec                 eax

        $sequence_1 = { e8???????? 83c8ff e9???????? 4d8bf4 488d057c380100 4183e63f }
            // n = 6, score = 100
            //   e8????????           |                     
            //   83c8ff               | dec                 eax
            //   e9????????           |                     
            //   4d8bf4               | add                 esp, 0x20
            //   488d057c380100       | pop                 ebx
            //   4183e63f             | ret                 

        $sequence_2 = { ff15???????? 4c8d0db068ffff 4885db 755d 4883c504 }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   4c8d0db068ffff       | mov                 eax, dword ptr [esp + 0x40]
            //   4885db               | dec                 ebp
            //   755d                 | mov                 ecx, eax
            //   4883c504             | dec                 eax

        $sequence_3 = { 488be9 41be00010000 458bc6 488d4c2420 }
            // n = 4, score = 100
            //   488be9               | lea                 eax, [0x16f6f]
            //   41be00010000         | jmp                 0x262
            //   458bc6               | dec                 eax
            //   488d4c2420           | test                eax, eax

        $sequence_4 = { 41837a1800 7643 33ff 0f1f4000 418b01 42813c20474d4845 }
            // n = 6, score = 100
            //   41837a1800           | inc                 dword ptr [ebx + 0x18]
            //   7643                 | dec                 eax
            //   33ff                 | lea                 ebp, [0x10ae3]
            //   0f1f4000             | and                 dword ptr [ebx + 0x50], 0
            //   418b01               | and                 dword ptr [ebx + 0x2c], 0
            //   42813c20474d4845     | dec                 eax

        $sequence_5 = { 4889442420 4c8bc3 488d5590 488d4c2438 }
            // n = 4, score = 100
            //   4889442420           | lea                 ecx, [0x1f2cb]
            //   4c8bc3               | inc                 ebp
            //   488d5590             | mov                 eax, esi
            //   488d4c2438           | dec                 ecx

        $sequence_6 = { 488d35bfc90100 eb16 488b3b 4885ff }
            // n = 4, score = 100
            //   488d35bfc90100       | lea                 ebx, [0x1c9c6]
            //   eb16                 | dec                 eax
            //   488b3b               | mov                 dword ptr [esp + 0x20], esi
            //   4885ff               | dec                 eax

        $sequence_7 = { 0f298d20020000 0f2805???????? 0f298530020000 0f280d???????? 0f298d40020000 }
            // n = 5, score = 100
            //   0f298d20020000       | dec                 esp
            //   0f2805????????       |                     
            //   0f298530020000       | lea                 ecx, [ebp + 0x260]
            //   0f280d????????       |                     
            //   0f298d40020000       | inc                 ebp

        $sequence_8 = { 488d3d2c3b0100 482bfe 8a041f 8803 48ffc3 4883ed01 75f2 }
            // n = 7, score = 100
            //   488d3d2c3b0100       | inc                 ecx
            //   482bfe               | mov                 ecx, ebp
            //   8a041f               | dec                 ecx
            //   8803                 | add                 edx, edx
            //   48ffc3               | inc                 esi
            //   4883ed01             | mov                 ebx, dword ptr [edi + ecx + 0x24]
            //   75f2                 | dec                 ebp

        $sequence_9 = { 49ffc0 6642833c4600 75f5 e9???????? 413947ec 0f8572020000 418b3f }
            // n = 7, score = 100
            //   49ffc0               | sub                 esp, 0x28
            //   6642833c4600         | dec                 eax
            //   75f5                 | test                eax, eax
            //   e9????????           |                     
            //   413947ec             | jne                 0x138
            //   0f8572020000         | dec                 eax
            //   418b3f               | lea                 eax, [0x16f4b]

    condition:
        7 of them and filesize < 389120
}
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