SYMBOLCOMMON_NAMEaka. SYNONYMS
win.plaintee (Back to overview)

PLAINTEE

Actor(s): RANCOR


There is no description at this point.

References
2020-01-29nao_sec blognao_sec
@online{naosec:20200129:overhead:ec0aeb5, author = {nao_sec}, title = {{An Overhead View of the Royal Road}}, date = {2020-01-29}, organization = {nao_sec blog}, url = {https://nao-sec.org/2020/01/an-overhead-view-of-the-royal-road.html}, language = {English}, urldate = {2020-02-03} } An Overhead View of the Royal Road
BLACKCOFFEE Cotx RAT Datper DDKONG Derusbi Icefog Korlia NewCore RAT PLAINTEE Poison Ivy Sisfader
2020SecureworksSecureWorks
@online{secureworks:2020:bronze:79d8dd2, author = {SecureWorks}, title = {{BRONZE OVERBROOK}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/bronze-overbrook}, language = {English}, urldate = {2020-05-23} } BRONZE OVERBROOK
Aveo DDKONG IsSpace PLAINTEE PlugX Rambo DragonOK
2018-06-26Palo Alto Networks Unit 42Brittany Ash, Josh Grunzweig, Tom Lancaster
@online{ash:20180626:rancor:99f5616, author = {Brittany Ash and Josh Grunzweig and Tom Lancaster}, title = {{RANCOR: Targeted Attacks in South East Asia Using PLAINTEE and DDKONG Malware Families}}, date = {2018-06-26}, organization = {Palo Alto Networks Unit 42}, url = {https://researchcenter.paloaltonetworks.com/2018/06/unit42-rancor-targeted-attacks-south-east-asia-using-plaintee-ddkong-malware-families/}, language = {English}, urldate = {2019-12-20} } RANCOR: Targeted Attacks in South East Asia Using PLAINTEE and DDKONG Malware Families
DDKONG PLAINTEE
Yara Rules
[TLP:WHITE] win_plaintee_auto (20201023 | autogenerated rule brought to you by yara-signator)
rule win_plaintee_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-12-22"
        version = "1"
        description = "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.plaintee"
        malpedia_rule_date = "20201222"
        malpedia_hash = "30354d830a29f0fbd3714d93d94dea941d77a130"
        malpedia_version = "20201023"
        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 = { a4 83c9ff 8bfb f2ae f7d1 }
            // n = 5, score = 300
            //   a4                   | movsb               byte ptr es:[edi], byte ptr [esi]
            //   83c9ff               | or                  ecx, 0xffffffff
            //   8bfb                 | mov                 edi, ebx
            //   f2ae                 | repne scasb         al, byte ptr es:[edi]
            //   f7d1                 | not                 ecx

        $sequence_1 = { 50 8b8538010000 6a5a 52 50 e8???????? 83c414 }
            // n = 7, score = 300
            //   50                   | push                eax
            //   8b8538010000         | mov                 eax, dword ptr [ebp + 0x138]
            //   6a5a                 | push                0x5a
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14

        $sequence_2 = { ff15???????? 85c0 740a b001 }
            // n = 4, score = 300
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   740a                 | je                  0xc
            //   b001                 | mov                 al, 1

        $sequence_3 = { c744240800000000 ff15???????? 85c0 741a 68???????? }
            // n = 5, score = 300
            //   c744240800000000     | mov                 dword ptr [esp + 8], 0
            //   ff15????????         |                     
            //   85c0                 | test                eax, eax
            //   741a                 | je                  0x1c
            //   68????????           |                     

        $sequence_4 = { 740a b001 5e 81c490010000 }
            // n = 4, score = 300
            //   740a                 | je                  0xc
            //   b001                 | mov                 al, 1
            //   5e                   | pop                 esi
            //   81c490010000         | add                 esp, 0x190

        $sequence_5 = { 55 56 8be9 57 b916000000 }
            // n = 5, score = 300
            //   55                   | push                ebp
            //   56                   | push                esi
            //   8be9                 | mov                 ebp, ecx
            //   57                   | push                edi
            //   b916000000           | mov                 ecx, 0x16

        $sequence_6 = { 8b8538010000 6a5a 52 50 e8???????? }
            // n = 5, score = 300
            //   8b8538010000         | mov                 eax, dword ptr [ebp + 0x138]
            //   6a5a                 | push                0x5a
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_7 = { f3a5 8bcb 66a5 8bc1 }
            // n = 4, score = 300
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   8bcb                 | mov                 ecx, ebx
            //   66a5                 | movsw               word ptr es:[edi], word ptr [esi]
            //   8bc1                 | mov                 eax, ecx

        $sequence_8 = { 8b4c240c b801000000 80c20a 3bf0 8811 7e0f 53 }
            // n = 7, score = 300
            //   8b4c240c             | mov                 ecx, dword ptr [esp + 0xc]
            //   b801000000           | mov                 eax, 1
            //   80c20a               | add                 dl, 0xa
            //   3bf0                 | cmp                 esi, eax
            //   8811                 | mov                 byte ptr [ecx], dl
            //   7e0f                 | jle                 0x11
            //   53                   | push                ebx

        $sequence_9 = { 74c6 8bce e8???????? 56 }
            // n = 4, score = 300
            //   74c6                 | je                  0xffffffc8
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   56                   | push                esi

    condition:
        7 of them and filesize < 73728
}
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