SYMBOLCOMMON_NAMEaka. SYNONYMS
win.cadelspy (Back to overview)

CadelSpy

aka: Cadelle

There is no description at this point.

References
2015-12-07SymantecSymantec
@techreport{symantec:20151207:backdoorcadelspy:6a40e51, author = {Symantec}, title = {{Backdoor.Cadelspy and Backdoor.Remexi: indicators of compromise}}, date = {2015-12-07}, institution = {Symantec}, url = {http://www.symantec.com/content/en/us/enterprise/media/security_response/docs/CadelSpy-Remexi-IOC.pdf}, language = {English}, urldate = {2020-01-06} } Backdoor.Cadelspy and Backdoor.Remexi: indicators of compromise
CadelSpy Remexi
2015-12-07SymantecSecurity Response
@online{response:20151207:iranbased:5e7136f, author = {Security Response}, title = {{Iran-based attackers use back door threats to spy on Middle Eastern targets}}, date = {2015-12-07}, organization = {Symantec}, url = {https://web.archive.org/web/20191221064439/https://www.symantec.com/connect/blogs/iran-based-attackers-use-back-door-threats-spy-middle-eastern-targets}, language = {English}, urldate = {2020-04-21} } Iran-based attackers use back door threats to spy on Middle Eastern targets
CadelSpy Remexi Cadelle
Yara Rules
[TLP:WHITE] win_cadelspy_auto (20211008 | Detects win.cadelspy.)
rule win_cadelspy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-10-07"
        version = "1"
        description = "Detects win.cadelspy."
        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.cadelspy"
        malpedia_rule_date = "20211007"
        malpedia_hash = "e5b790e0f888f252d49063a1251ca60ec2832535"
        malpedia_version = "20211008"
        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 = { c1f805 8d1485004c0110 8b02 83e61f c1e606 }
            // n = 5, score = 100
            //   c1f805               | sar                 eax, 5
            //   8d1485004c0110       | lea                 edx, dword ptr [eax*4 + 0x10014c00]
            //   8b02                 | mov                 eax, dword ptr [edx]
            //   83e61f               | and                 esi, 0x1f
            //   c1e606               | shl                 esi, 6

        $sequence_1 = { ebc9 8bc8 c1f905 8d1c8d004c0110 8bf8 83e71f c1e706 }
            // n = 7, score = 100
            //   ebc9                 | jmp                 0xffffffcb
            //   8bc8                 | mov                 ecx, eax
            //   c1f905               | sar                 ecx, 5
            //   8d1c8d004c0110       | lea                 ebx, dword ptr [ecx*4 + 0x10014c00]
            //   8bf8                 | mov                 edi, eax
            //   83e71f               | and                 edi, 0x1f
            //   c1e706               | shl                 edi, 6

        $sequence_2 = { 56 8b7508 8bc6 c1f805 8d1485004c0110 }
            // n = 5, score = 100
            //   56                   | push                esi
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   8bc6                 | mov                 eax, esi
            //   c1f805               | sar                 eax, 5
            //   8d1485004c0110       | lea                 edx, dword ptr [eax*4 + 0x10014c00]

        $sequence_3 = { c1f805 8d3485004c0110 8b06 83e71f c1e706 }
            // n = 5, score = 100
            //   c1f805               | sar                 eax, 5
            //   8d3485004c0110       | lea                 esi, dword ptr [eax*4 + 0x10014c00]
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   83e71f               | and                 edi, 0x1f
            //   c1e706               | shl                 edi, 6

        $sequence_4 = { ff7510 ff7508 ff75fc ff15???????? ff75fc 8bd8 }
            // n = 6, score = 100
            //   ff7510               | push                dword ptr [ebp + 0x10]
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   ff15????????         |                     
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   8bd8                 | mov                 ebx, eax

        $sequence_5 = { 53 0fb71f 56 8b7508 53 e8???????? 0fb70f }
            // n = 7, score = 100
            //   53                   | push                ebx
            //   0fb71f               | movzx               ebx, word ptr [edi]
            //   56                   | push                esi
            //   8b7508               | mov                 esi, dword ptr [ebp + 8]
            //   53                   | push                ebx
            //   e8????????           |                     
            //   0fb70f               | movzx               ecx, word ptr [edi]

        $sequence_6 = { e8???????? 59 59 85c0 7525 57 8bce }
            // n = 7, score = 100
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax
            //   7525                 | jne                 0x27
            //   57                   | push                edi
            //   8bce                 | mov                 ecx, esi

        $sequence_7 = { 6683bd740500005c 740c 68???????? 8bdf }
            // n = 4, score = 100
            //   6683bd740500005c     | cmp                 word ptr [ebp + 0x574], 0x5c
            //   740c                 | je                  0xe
            //   68????????           |                     
            //   8bdf                 | mov                 ebx, edi

        $sequence_8 = { 740c 68???????? 8bdf e8???????? 8d8574050000 50 8bdf }
            // n = 7, score = 100
            //   740c                 | je                  0xe
            //   68????????           |                     
            //   8bdf                 | mov                 ebx, edi
            //   e8????????           |                     
            //   8d8574050000         | lea                 eax, dword ptr [ebp + 0x574]
            //   50                   | push                eax
            //   8bdf                 | mov                 ebx, edi

        $sequence_9 = { e8???????? 68???????? 8d9c2464020000 e8???????? }
            // n = 4, score = 100
            //   e8????????           |                     
            //   68????????           |                     
            //   8d9c2464020000       | lea                 ebx, dword ptr [esp + 0x264]
            //   e8????????           |                     

    condition:
        7 of them and filesize < 204800
}
[TLP:WHITE] win_cadelspy_w0   (20170410 | No description)
rule win_cadelspy_w0 {
    meta:
        author = "Symantec"
        source = "http://www.symantec.com/content/en/us/enterprise/media/security_response/docs/CadelSpy-Remexi-IOC.pdf"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cadelspy"
        malpedia_version = "20170410"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""
    strings:
        $s1 = { 
                56 57 8B F8 8B F1 33 C0 3B F0 74 22 39 44 24 0C
                74 18 0F B7 0F 66 3B C8 74 10 66 89 0A 42 42 47
                47 4E FF 4C 24 0C 3B F0 75 E2 3B F0 75 07 4A 4A
                B8 7A 00 07 80 33 C9 5F 66 89 0A 5E C2 04 00
              }
        $s2 = "ntsvc32"
        $s3 = "ntbind32"
    condition:
        $s1 and ($s2 or $s3)
}
[TLP:WHITE] win_cadelspy_w1   (20170410 | No description)
rule win_cadelspy_w1 {
    meta:
        author = "Symantec"
        source = "http://www.symantec.com/content/en/us/enterprise/media/security_response/docs/CadelSpy-Remexi-IOC.pdf"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cadelspy"
        malpedia_version = "20170410"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""
    strings:
        $s1  = "[EXECUTE]" wide ascii
        $s2  = "WebCamCapture" wide ascii
        $s3  = "</DAY>" wide ascii
        $s4  =
        "</DOCUMENT>" wide ascii
        $s5  = "<DOCUMENT>" wide ascii
        $s6  = "<DATETIME>" wide ascii
        $s7  = "Can't open file for reading :" wide ascii
        $s8  = "</DATETIME>" wide ascii
        $s9  = "</USERNAME>" wide ascii
        $s10 = "JpegFile :" wide ascii
        $s12 = "[SCROLL]" wide ascii
        $s13 = "<YEAR>" wide ascii
        $s14 = "CURRENT DATE" wide ascii
        $s15 = "</YEAR>" wide ascii
        $s16 = "</MONTH>" wide ascii
        $s17 = "<PRINTERNAME>" wide ascii
        $s18 = "</DRIVE>" wide ascii
        $s19 = "<DATATYPE>" wide ascii
        $s20 = "<MACADDRESS>" wide ascii
        $s21 = "FlashMemory" wide ascii
    condition:
        12 of them
}
[TLP:WHITE] win_cadelspy_w2   (20170410 | No description)
rule win_cadelspy_w2 {
    meta:
        author = "Symantec"
        source = "http://www.symantec.com/content/en/us/enterprise/media/security_response/docs/CadelSpy-Remexi-IOC.pdf"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cadelspy"
        malpedia_version = "20170410"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""
    strings:
        $s1  = "SOFTWARE\\ntsvc32\\HDD" wide ascii
        $s2  = "SOFTWARE\\ntsvc32\\ROU" wide ascii
        $s3  = "SOFTWARE\\ntsvc32\\HST" wide ascii
        $s4  = "SOFTWARE\\ntsvc32\\FLS" wide ascii
        $s5  = "ntsvc32" wide ascii
        $s6  = ".Win$py." wide ascii
        $s7  = "C:\\users\\" wide ascii
        $s8  = "%system32%" wide ascii
        $s9  = "\\Local Settings\\Temp" wide ascii
        $s10 = "SVWATAUAVAW" wide ascii
        $s11 = "\\AppData\\Local" wide ascii
        $s12 = "\\AppData" wide ascii
    condition:
        6 of them
}
[TLP:WHITE] win_cadelspy_w3   (20170410 | No description)
rule win_cadelspy_w3 {
    meta:
        author = "Symantec"
        source = "http://www.symantec.com/content/en/us/enterprise/media/security_response/docs/CadelSpy-Remexi-IOC.pdf"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cadelspy"
        malpedia_version = "20170410"
        malpedia_sharing = "TLP:WHITE"
        malpedia_license = ""
    strings:
        $s1 = "AppInit_DLLs" wide ascii
        $s2 = { 5C 00 62 00 61 00 63 00 6B 00 75 00 70 00 00 }
        $s3 = { 5C 00 75 00 70 00 64 00 61 00 74 00 65 00 00 }
        $s4 = "\\cmd.exe" wide ascii
    condition:
        all of them
}
Download all Yara Rules