SYMBOLCOMMON_NAMEaka. SYNONYMS
win.ismagent (Back to overview)

ISMAgent

Actor(s): Greenbug, APT34


There is no description at this point.

References
2022-07-18Palo Alto Networks Unit 42Unit 42
@online{42:20220718:evasive:ccfb062, author = {Unit 42}, title = {{Evasive Serpens}}, date = {2022-07-18}, organization = {Palo Alto Networks Unit 42}, url = {https://unit42.paloaltonetworks.com/atoms/evasive-serpens/}, language = {English}, urldate = {2022-07-29} } Evasive Serpens
TwoFace ISMAgent ISMDoor OopsIE RDAT OilRig
2020-05-19SymantecCritical Attack Discovery and Intelligence Team
@online{team:20200519:sophisticated:023b1bd, author = {Critical Attack Discovery and Intelligence Team}, title = {{Sophisticated Espionage Group Turns Attention to Telecom Providers in South Asia}}, date = {2020-05-19}, organization = {Symantec}, url = {https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/greenbug-espionage-telco-south-asia}, language = {English}, urldate = {2020-05-20} } Sophisticated Espionage Group Turns Attention to Telecom Providers in South Asia
ISMAgent ISMDoor
2019-08-22CywareCyware
@online{cyware:20190822:apt34:3439fde, author = {Cyware}, title = {{APT34: The Helix Kitten Cybercriminal Group Loves to Meow Middle Eastern and International Organizations}}, date = {2019-08-22}, organization = {Cyware}, url = {https://cyware.com/blog/apt34-the-helix-kitten-cybercriminal-group-loves-to-meow-middle-eastern-and-international-organizations-48ae}, language = {English}, urldate = {2021-06-29} } APT34: The Helix Kitten Cybercriminal Group Loves to Meow Middle Eastern and International Organizations
TwoFace BONDUPDATER POWRUNER QUADAGENT Helminth ISMAgent Karkoff LONGWATCH OopsIE PICKPOCKET RGDoor VALUEVAULT
2019-04-16Robert Falcone
@online{falcone:20190416:dns:fed953e, author = {Robert Falcone}, title = {{DNS Tunneling in the Wild: Overview of OilRig’s DNS Tunneling}}, date = {2019-04-16}, url = {https://unit42.paloaltonetworks.com/dns-tunneling-in-the-wild-overview-of-oilrigs-dns-tunneling/}, language = {English}, urldate = {2019-12-03} } DNS Tunneling in the Wild: Overview of OilRig’s DNS Tunneling
BONDUPDATER QUADAGENT Alma Communicator Helminth ISMAgent
2017-08-28ClearSkyClearSky Research Team
@online{team:20170828:recent:fab1e53, author = {ClearSky Research Team}, title = {{Recent ISMAgent Samples and Infrastructure by Iranian Threat Group GreenBug}}, date = {2017-08-28}, organization = {ClearSky}, url = {http://www.clearskysec.com/ismagent/}, language = {English}, urldate = {2019-12-19} } Recent ISMAgent Samples and Infrastructure by Iranian Threat Group GreenBug
ISMAgent
Yara Rules
[TLP:WHITE] win_ismagent_auto (20221125 | Detects win.ismagent.)
rule win_ismagent_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.ismagent."
        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.ismagent"
        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 = { ff7508 e8???????? 83c40c e9???????? 8b048d48404200 8b4df0 }
            // n = 6, score = 200
            //   ff7508               | push                dword ptr [ebp + 8]
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   e9????????           |                     
            //   8b048d48404200       | mov                 eax, dword ptr [ecx*4 + 0x424048]
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]

        $sequence_1 = { 8b048548404200 80640828fe ff33 e8???????? }
            // n = 4, score = 200
            //   8b048548404200       | mov                 eax, dword ptr [eax*4 + 0x424048]
            //   80640828fe           | and                 byte ptr [eax + ecx + 0x28], 0xfe
            //   ff33                 | push                dword ptr [ebx]
            //   e8????????           |                     

        $sequence_2 = { 8b45fc 8b0c8548404200 8a06 46 8844392c }
            // n = 5, score = 200
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   8b0c8548404200       | mov                 ecx, dword ptr [eax*4 + 0x424048]
            //   8a06                 | mov                 al, byte ptr [esi]
            //   46                   | inc                 esi
            //   8844392c             | mov                 byte ptr [ecx + edi + 0x2c], al

        $sequence_3 = { c78424a800000044000000 0f57c0 0f29842430020000 50 8d8424ac000000 50 }
            // n = 6, score = 200
            //   c78424a800000044000000     | mov    dword ptr [esp + 0xa8], 0x44
            //   0f57c0               | xorps               xmm0, xmm0
            //   0f29842430020000     | movaps              xmmword ptr [esp + 0x230], xmm0
            //   50                   | push                eax
            //   8d8424ac000000       | lea                 eax, [esp + 0xac]
            //   50                   | push                eax

        $sequence_4 = { e9???????? 8b742440 56 ff74242c 6a01 52 }
            // n = 6, score = 200
            //   e9????????           |                     
            //   8b742440             | mov                 esi, dword ptr [esp + 0x40]
            //   56                   | push                esi
            //   ff74242c             | push                dword ptr [esp + 0x2c]
            //   6a01                 | push                1
            //   52                   | push                edx

        $sequence_5 = { 83e103 f3a4 8dbc2400070000 4f }
            // n = 4, score = 200
            //   83e103               | and                 ecx, 3
            //   f3a4                 | rep movsb           byte ptr es:[edi], byte ptr [esi]
            //   8dbc2400070000       | lea                 edi, [esp + 0x700]
            //   4f                   | dec                 edi

        $sequence_6 = { 6a00 6a00 6a00 6a01 68???????? ffd0 68???????? }
            // n = 7, score = 200
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   6a01                 | push                1
            //   68????????           |                     
            //   ffd0                 | call                eax
            //   68????????           |                     

        $sequence_7 = { ff742438 ff15???????? 85c0 0f8575ffffff 8d8c2418030000 49 }
            // n = 6, score = 200
            //   ff742438             | push                dword ptr [esp + 0x38]
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   0f8575ffffff         | jne                 0xffffff7b
            //   8d8c2418030000       | lea                 ecx, [esp + 0x318]
            //   49                   | dec                 ecx

    condition:
        7 of them and filesize < 327680
}
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