SYMBOLCOMMON_NAMEaka. SYNONYMS
win.sysget (Back to overview)

SysGet

Actor(s): DragonOK


There is no description at this point.

References
2017-01-05Palo Alto Networks Unit 42Josh Grunzweig
@online{grunzweig:20170105:dragonok:f5f73f6, author = {Josh Grunzweig}, title = {{DragonOK Updates Toolset and Targets Multiple Geographic Regions}}, date = {2017-01-05}, organization = {Palo Alto Networks Unit 42}, url = {http://researchcenter.paloaltonetworks.com/2017/01/unit42-dragonok-updates-toolset-targets-multiple-geographic-regions/}, language = {English}, urldate = {2019-12-20} } DragonOK Updates Toolset and Targets Multiple Geographic Regions
IsSpace SysGet
2014FireEyeFireEye
@techreport{fireeye:2014:operation:2160679, author = {FireEye}, title = {{Operation Quantum Entanglement}}, date = {2014}, institution = {FireEye}, url = {http://csecybsec.com/download/zlab/20180713_CSE_APT28_X-Agent_Op-Roman%20Holiday-Report_v6_1.pdf}, language = {English}, urldate = {2021-04-29} } Operation Quantum Entanglement
IsSpace NewCT Poison Ivy SysGet
Yara Rules
[TLP:WHITE] win_sysget_auto (20220411 | Detects win.sysget.)
rule win_sysget_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        version = "1"
        description = "Detects win.sysget."
        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.sysget"
        malpedia_rule_date = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { a5 50 8d85dcf9ffff 50 a5 }
            // n = 5, score = 400
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   50                   | push                eax
            //   8d85dcf9ffff         | lea                 eax, dword ptr [ebp - 0x624]
            //   50                   | push                eax
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]

        $sequence_1 = { e8???????? 68f9000000 8d8501ffffff 53 50 }
            // n = 5, score = 400
            //   e8????????           |                     
            //   68f9000000           | push                0xf9
            //   8d8501ffffff         | lea                 eax, dword ptr [ebp - 0xff]
            //   53                   | push                ebx
            //   50                   | push                eax

        $sequence_2 = { 50 668985fcf7ffff 8d85fef7ffff 50 e8???????? 6a00 }
            // n = 6, score = 400
            //   50                   | push                eax
            //   668985fcf7ffff       | mov                 word ptr [ebp - 0x804], ax
            //   8d85fef7ffff         | lea                 eax, dword ptr [ebp - 0x802]
            //   50                   | push                eax
            //   e8????????           |                     
            //   6a00                 | push                0

        $sequence_3 = { ff7508 893e ff15???????? 8bd8 83fbff }
            // n = 5, score = 400
            //   ff7508               | push                dword ptr [ebp + 8]
            //   893e                 | mov                 dword ptr [esi], edi
            //   ff15????????         |                     
            //   8bd8                 | mov                 ebx, eax
            //   83fbff               | cmp                 ebx, -1

        $sequence_4 = { 8bd2 8bc9 50 58 90 90 }
            // n = 6, score = 400
            //   8bd2                 | mov                 edx, edx
            //   8bc9                 | mov                 ecx, ecx
            //   50                   | push                eax
            //   58                   | pop                 eax
            //   90                   | nop                 
            //   90                   | nop                 

        $sequence_5 = { 56 57 6a00 8bd8 ff15???????? 56 }
            // n = 6, score = 400
            //   56                   | push                esi
            //   57                   | push                edi
            //   6a00                 | push                0
            //   8bd8                 | mov                 ebx, eax
            //   ff15????????         |                     
            //   56                   | push                esi

        $sequence_6 = { c745f0979394d4 c745f4c8c6c799 c745f8c9c8a0a0 e8???????? }
            // n = 4, score = 400
            //   c745f0979394d4       | mov                 dword ptr [ebp - 0x10], 0xd4949397
            //   c745f4c8c6c799       | mov                 dword ptr [ebp - 0xc], 0x99c7c6c8
            //   c745f8c9c8a0a0       | mov                 dword ptr [ebp - 8], 0xa0a0c8c9
            //   e8????????           |                     

        $sequence_7 = { 89b5e8f1ffff 8bb5e8f1ffff 68???????? 56 e8???????? 59 59 }
            // n = 7, score = 400
            //   89b5e8f1ffff         | mov                 dword ptr [ebp - 0xe18], esi
            //   8bb5e8f1ffff         | mov                 esi, dword ptr [ebp - 0xe18]
            //   68????????           |                     
            //   56                   | push                esi
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx

        $sequence_8 = { a5 a5 a5 6a30 }
            // n = 4, score = 400
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   6a30                 | push                0x30

        $sequence_9 = { 8d85f8fbffff 50 ff35???????? ff15???????? 85c0 0f851dffffff }
            // n = 6, score = 400
            //   8d85f8fbffff         | lea                 eax, dword ptr [ebp - 0x408]
            //   50                   | push                eax
            //   ff35????????         |                     
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   0f851dffffff         | jne                 0xffffff23

    condition:
        7 of them and filesize < 352256
}
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