SYMBOLCOMMON_NAMEaka. SYNONYMS
win.rhttpctrl (Back to overview)

RHttpCtrl

Actor(s): APT 30


There is no description at this point.

References
2020-06-19Positive TechnologiesAlexey Vishnyakov
@online{vishnyakov:20200619:eagle:01efbbd, author = {Alexey Vishnyakov}, title = {{The eagle eye is back: old and new backdoors from APT30}}, date = {2020-06-19}, organization = {Positive Technologies}, url = {https://www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/eagle-eye-is-back-apt30/}, language = {English}, urldate = {2020-06-20} } The eagle eye is back: old and new backdoors from APT30
backspace NETEAGLE RCtrl RHttpCtrl APT30
Yara Rules
[TLP:WHITE] win_rhttpctrl_auto (20230125 | Detects win.rhttpctrl.)
rule win_rhttpctrl_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.rhttpctrl."
        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.rhttpctrl"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { eb0f 8d0436 50 52 8b51f8 03d2 }
            // n = 6, score = 100
            //   eb0f                 | jmp                 0x11
            //   8d0436               | lea                 eax, [esi + esi]
            //   50                   | push                eax
            //   52                   | push                edx
            //   8b51f8               | mov                 edx, dword ptr [ecx - 8]
            //   03d2                 | add                 edx, edx

        $sequence_1 = { ff520c 83c010 8985e8feffff c645fc01 85f6 743b f7c60000ffff }
            // n = 7, score = 100
            //   ff520c               | call                dword ptr [edx + 0xc]
            //   83c010               | add                 eax, 0x10
            //   8985e8feffff         | mov                 dword ptr [ebp - 0x118], eax
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   85f6                 | test                esi, esi
            //   743b                 | je                  0x3d
            //   f7c60000ffff         | test                esi, 0xffff0000

        $sequence_2 = { 7434 ba1c010000 8d8dd8feffff 0f1f8000000000 c60100 8d4901 83ea01 }
            // n = 7, score = 100
            //   7434                 | je                  0x36
            //   ba1c010000           | mov                 edx, 0x11c
            //   8d8dd8feffff         | lea                 ecx, [ebp - 0x128]
            //   0f1f8000000000       | nop                 dword ptr [eax]
            //   c60100               | mov                 byte ptr [ecx], 0
            //   8d4901               | lea                 ecx, [ecx + 1]
            //   83ea01               | sub                 edx, 1

        $sequence_3 = { ff15???????? ff742438 8b35???????? ffd6 ff74243c }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   ff742438             | push                dword ptr [esp + 0x38]
            //   8b35????????         |                     
            //   ffd6                 | call                esi
            //   ff74243c             | push                dword ptr [esp + 0x3c]

        $sequence_4 = { c705????????b0324200 c705????????d8354200 c705????????d0344200 e8???????? 68???????? 50 6a01 }
            // n = 7, score = 100
            //   c705????????b0324200     |     
            //   c705????????d8354200     |     
            //   c705????????d0344200     |     
            //   e8????????           |                     
            //   68????????           |                     
            //   50                   | push                eax
            //   6a01                 | push                1

        $sequence_5 = { 8bec 83e4f0 81ec88010000 a1???????? 33c4 89842484010000 8b4508 }
            // n = 7, score = 100
            //   8bec                 | mov                 ebp, esp
            //   83e4f0               | and                 esp, 0xfffffff0
            //   81ec88010000         | sub                 esp, 0x188
            //   a1????????           |                     
            //   33c4                 | xor                 eax, esp
            //   89842484010000       | mov                 dword ptr [esp + 0x184], eax
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]

        $sequence_6 = { 33d2 8b08 85c9 7407 }
            // n = 4, score = 100
            //   33d2                 | xor                 edx, edx
            //   8b08                 | mov                 ecx, dword ptr [eax]
            //   85c9                 | test                ecx, ecx
            //   7407                 | je                  9

        $sequence_7 = { 0f448c24ac000000 894c241c e8???????? 83c40c 89442428 }
            // n = 5, score = 100
            //   0f448c24ac000000     | cmove               ecx, dword ptr [esp + 0xac]
            //   894c241c             | mov                 dword ptr [esp + 0x1c], ecx
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   89442428             | mov                 dword ptr [esp + 0x28], eax

        $sequence_8 = { 85c0 7409 837e1c00 7403 c60000 }
            // n = 5, score = 100
            //   85c0                 | test                eax, eax
            //   7409                 | je                  0xb
            //   837e1c00             | cmp                 dword ptr [esi + 0x1c], 0
            //   7403                 | je                  5
            //   c60000               | mov                 byte ptr [eax], 0

        $sequence_9 = { 0f1000 8b4508 0f1100 8be5 5d }
            // n = 5, score = 100
            //   0f1000               | movups              xmm0, xmmword ptr [eax]
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   0f1100               | movups              xmmword ptr [eax], xmm0
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp

    condition:
        7 of them and filesize < 339968
}
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