SYMBOLCOMMON_NAMEaka. SYNONYMS
win.evilgrab (Back to overview)

EvilGrab

aka: Vidgrab

Actor(s): Stone Panda


There is no description at this point.

References
2015-08Arbor NetworksASERT Team
@online{team:201508:uncovering:121e5cf, author = {ASERT Team}, title = {{Uncovering the Seven Pointed Dagger}}, date = {2015-08}, organization = {Arbor Networks}, url = {https://app.box.com/s/z1uanuv1vn3vw5iket1r6bqrmlra0gpn}, language = {English}, urldate = {2020-05-18} } Uncovering the Seven Pointed Dagger
9002 RAT EvilGrab PlugX Trochilus RAT Group 27
2015-02-06CrowdStrikeCrowdStrike
@techreport{crowdstrike:20150206:crowdstrike:fbcc37f, author = {CrowdStrike}, title = {{CrowdStrike Global Threat Intel Report 2014}}, date = {2015-02-06}, institution = {CrowdStrike}, url = {https://web.archive.org/web/20200509171721/https://raw.githubusercontent.com/fdiskyou/threat-INTel/master/2015/GlobalThreatIntelReport.pdf}, language = {English}, urldate = {2020-05-11} } CrowdStrike Global Threat Intel Report 2014
BlackPOS CryptoLocker Derusbi Elise Enfal EvilGrab Gameover P2P HttpBrowser Medusa Mirage Naikon NetTraveler pirpi PlugX Poison Ivy Sakula RAT Sinowal sykipot taidoor
Yara Rules
[TLP:WHITE] win_evilgrab_auto (20210616 | Detects win.evilgrab.)
rule win_evilgrab_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.evilgrab."
        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.evilgrab"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        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 = { 6a00 6800110000 ff15???????? 8b442414 8d4c2425 50 }
            // n = 6, score = 200
            //   6a00                 | push                0
            //   6800110000           | push                0x1100
            //   ff15????????         |                     
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]
            //   8d4c2425             | lea                 ecx, dword ptr [esp + 0x25]
            //   50                   | push                eax

        $sequence_1 = { 1bc0 83d8ff 85c0 0f84e6000000 8d442434 50 ff15???????? }
            // n = 7, score = 200
            //   1bc0                 | sbb                 eax, eax
            //   83d8ff               | sbb                 eax, -1
            //   85c0                 | test                eax, eax
            //   0f84e6000000         | je                  0xec
            //   8d442434             | lea                 eax, dword ptr [esp + 0x34]
            //   50                   | push                eax
            //   ff15????????         |                     

        $sequence_2 = { 6a00 55 ff15???????? 5e 5d c605????????01 5b }
            // n = 7, score = 200
            //   6a00                 | push                0
            //   55                   | push                ebp
            //   ff15????????         |                     
            //   5e                   | pop                 esi
            //   5d                   | pop                 ebp
            //   c605????????01       |                     
            //   5b                   | pop                 ebx

        $sequence_3 = { 51 52 e8???????? 83c418 c685d0efffffd2 8b95c0efffff 8995d1efffff }
            // n = 7, score = 200
            //   51                   | push                ecx
            //   52                   | push                edx
            //   e8????????           |                     
            //   83c418               | add                 esp, 0x18
            //   c685d0efffffd2       | mov                 byte ptr [ebp - 0x1030], 0xd2
            //   8b95c0efffff         | mov                 edx, dword ptr [ebp - 0x1040]
            //   8995d1efffff         | mov                 dword ptr [ebp - 0x102f], edx

        $sequence_4 = { 8a550c 889112010000 8a4510 888110010000 c745fcffffffff 8b4df4 64890d00000000 }
            // n = 7, score = 200
            //   8a550c               | mov                 dl, byte ptr [ebp + 0xc]
            //   889112010000         | mov                 byte ptr [ecx + 0x112], dl
            //   8a4510               | mov                 al, byte ptr [ebp + 0x10]
            //   888110010000         | mov                 byte ptr [ecx + 0x110], al
            //   c745fcffffffff       | mov                 dword ptr [ebp - 4], 0xffffffff
            //   8b4df4               | mov                 ecx, dword ptr [ebp - 0xc]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx

        $sequence_5 = { ff15???????? 8bbd15ebffff 89bde0beffff 8b8519ebffff 8985dcbeffff 89b5ecbeffff 89b5e8beffff }
            // n = 7, score = 200
            //   ff15????????         |                     
            //   8bbd15ebffff         | mov                 edi, dword ptr [ebp - 0x14eb]
            //   89bde0beffff         | mov                 dword ptr [ebp - 0x4120], edi
            //   8b8519ebffff         | mov                 eax, dword ptr [ebp - 0x14e7]
            //   8985dcbeffff         | mov                 dword ptr [ebp - 0x4124], eax
            //   89b5ecbeffff         | mov                 dword ptr [ebp - 0x4114], esi
            //   89b5e8beffff         | mov                 dword ptr [ebp - 0x4118], esi

        $sequence_6 = { 4f c1e902 f3a5 8bca 6880000000 83e103 6a03 }
            // n = 7, score = 200
            //   4f                   | dec                 edi
            //   c1e902               | shr                 ecx, 2
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   8bca                 | mov                 ecx, edx
            //   6880000000           | push                0x80
            //   83e103               | and                 ecx, 3
            //   6a03                 | push                3

        $sequence_7 = { e9???????? 8bbd15ebffff 89bdcca8ffff 8d9514ebffff 52 6800100000 6a0d }
            // n = 7, score = 200
            //   e9????????           |                     
            //   8bbd15ebffff         | mov                 edi, dword ptr [ebp - 0x14eb]
            //   89bdcca8ffff         | mov                 dword ptr [ebp - 0x5734], edi
            //   8d9514ebffff         | lea                 edx, dword ptr [ebp - 0x14ec]
            //   52                   | push                edx
            //   6800100000           | push                0x1000
            //   6a0d                 | push                0xd

        $sequence_8 = { 0f858c140000 39b550feffff 0f8480140000 b940000000 33c0 8dbdecfeffff f3ab }
            // n = 7, score = 200
            //   0f858c140000         | jne                 0x1492
            //   39b550feffff         | cmp                 dword ptr [ebp - 0x1b0], esi
            //   0f8480140000         | je                  0x1486
            //   b940000000           | mov                 ecx, 0x40
            //   33c0                 | xor                 eax, eax
            //   8dbdecfeffff         | lea                 edi, dword ptr [ebp - 0x114]
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax

        $sequence_9 = { 52 e8???????? 83f8ff 751e 8b4610 50 e8???????? }
            // n = 7, score = 200
            //   52                   | push                edx
            //   e8????????           |                     
            //   83f8ff               | cmp                 eax, -1
            //   751e                 | jne                 0x20
            //   8b4610               | mov                 eax, dword ptr [esi + 0x10]
            //   50                   | push                eax
            //   e8????????           |                     

    condition:
        7 of them and filesize < 327680
}
[TLP:WHITE] win_evilgrab_w0   (20170517 | Vidgrab code tricks)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_evilgrab_w0 {
    meta:
        description = "Vidgrab code tricks"
        author = "Seth Hardy"
        last_modified = "2014-06-20"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Vidgrab.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.evilgrab"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $divbyzero = { B8 02 00 00 00 48 48 BA 02 00 00 00 83 F2 02 F7 F0 }
        // add eax, ecx; xor byte ptr [eax], ??h; inc ecx
        $xorloop = { 03 C1 80 30 (66 | 58) 41 }
        $junk = { 8B 4? ?? 8B 4? ?? 03 45 08 52 5A }
        
    condition:
        all of them
}
[TLP:WHITE] win_evilgrab_w1   (20170517 | Vidgrab Identifying Strings)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_evilgrab_w1 {
    meta:
        description = "Vidgrab Identifying Strings"
        author = "Seth Hardy"
        last_modified = "2014-06-20"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Vidgrab.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.evilgrab"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $s1 = "IDI_ICON5" wide ascii
        $s2 = "starter.exe"
        $s3 = "wmifw.exe"
        $s4 = "Software\\rar"
        $s5 = "tmp092.tmp"
        $s6 = "temp1.exe"
        
    condition:
       3 of them
}
Download all Yara Rules