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 (20201014 | autogenerated rule brought to you by yara-signator)
rule win_cadelspy_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cadelspy"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 895dfc 8b35???????? 68d0070000 ffd6 68???????? }
            // n = 5, score = 100
            //   895dfc               | mov                 dword ptr [ebp - 4], ebx
            //   8b35????????         |                     
            //   68d0070000           | push                0x7d0
            //   ffd6                 | call                esi
            //   68????????           |                     

        $sequence_1 = { e8???????? 83c414 8b45fc ff34c5f43d0110 53 57 e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   83c414               | add                 esp, 0x14
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   ff34c5f43d0110       | push                dword ptr [eax*8 + 0x10013df4]
            //   53                   | push                ebx
            //   57                   | push                edi
            //   e8????????           |                     

        $sequence_2 = { 53 8d4588 6a00 50 }
            // n = 4, score = 100
            //   53                   | push                ebx
            //   8d4588               | lea                 eax, [ebp - 0x78]
            //   6a00                 | push                0
            //   50                   | push                eax

        $sequence_3 = { 2bc1 d1f8 6683bc44760400005c 7411 }
            // n = 4, score = 100
            //   2bc1                 | sub                 eax, ecx
            //   d1f8                 | sar                 eax, 1
            //   6683bc44760400005c     | cmp    word ptr [esp + eax*2 + 0x476], 0x5c
            //   7411                 | je                  0x13

        $sequence_4 = { 85ff 7e1c 57 e8???????? }
            // n = 4, score = 100
            //   85ff                 | test                edi, edi
            //   7e1c                 | jle                 0x1e
            //   57                   | push                edi
            //   e8????????           |                     

        $sequence_5 = { e8???????? 33c0 e9???????? 8975e4 33c0 39b850380110 0f8491000000 }
            // n = 7, score = 100
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax
            //   e9????????           |                     
            //   8975e4               | mov                 dword ptr [ebp - 0x1c], esi
            //   33c0                 | xor                 eax, eax
            //   39b850380110         | cmp                 dword ptr [eax + 0x10013850], edi
            //   0f8491000000         | je                  0x97

        $sequence_6 = { 740c 68???????? 8bdf e8???????? 8d8574050000 50 8bdf }
            // n = 7, score = 100
            //   740c                 | je                  0xe
            //   68????????           |                     
            //   8bdf                 | mov                 ebx, edi
            //   e8????????           |                     
            //   8d8574050000         | lea                 eax, [ebp + 0x574]
            //   50                   | push                eax
            //   8bdf                 | mov                 ebx, edi

        $sequence_7 = { 680f270000 8d4585 6a00 50 c6458400 }
            // n = 5, score = 100
            //   680f270000           | push                0x270f
            //   8d4585               | lea                 eax, [ebp - 0x7b]
            //   6a00                 | push                0
            //   50                   | push                eax
            //   c6458400             | mov                 byte ptr [ebp - 0x7c], 0

        $sequence_8 = { 50 e8???????? 59 59 85c0 7524 837d8c05 }
            // n = 7, score = 100
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   85c0                 | test                eax, eax
            //   7524                 | jne                 0x26
            //   837d8c05             | cmp                 dword ptr [ebp - 0x74], 5

        $sequence_9 = { c1f905 83e01f c1e006 8b0c8d004c0110 8d440104 8020fe ff37 }
            // n = 7, score = 100
            //   c1f905               | sar                 ecx, 5
            //   83e01f               | and                 eax, 0x1f
            //   c1e006               | shl                 eax, 6
            //   8b0c8d004c0110       | mov                 ecx, dword ptr [ecx*4 + 0x10014c00]
            //   8d440104             | lea                 eax, [ecx + eax + 4]
            //   8020fe               | and                 byte ptr [eax], 0xfe
            //   ff37                 | push                dword ptr [edi]

    condition:
        7 of them and filesize < 204800
}
[TLP:WHITE] win_cadelspy_w0   (20170410 | No description)
rule win_cadelspy_w0 {
    meta:
        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_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    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:
        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_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    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:
        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_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    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:
        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_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    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
}
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