SYMBOLCOMMON_NAMEaka. SYNONYMS
win.enfal (Back to overview)

Enfal

aka: Lurid

There is no description at this point.

References
2020-03-12Check PointCheck Point Research
@online{research:20200312:vicious:3218bb8, author = {Check Point Research}, title = {{Vicious Panda: The COVID Campaign}}, date = {2020-03-12}, organization = {Check Point}, url = {https://research.checkpoint.com/2020/vicious-panda-the-covid-campaign/}, language = {English}, urldate = {2020-03-13} } Vicious Panda: The COVID Campaign
8.t Dropper BYEBY Enfal Korlia Poison Ivy
2020SecureworksSecureWorks
@online{secureworks:2020:bronze:4db27ec, author = {SecureWorks}, title = {{BRONZE UNION}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/bronze-union}, language = {English}, urldate = {2020-05-23} } BRONZE UNION
9002 RAT CHINACHOPPER Enfal Ghost RAT HttpBrowser HyperBro owaauth PlugX Poison Ivy ZXShell EMISSARY PANDA
2020SecureworksSecureWorks
@online{secureworks:2020:bronze:134ec2b, author = {SecureWorks}, title = {{BRONZE PALACE}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/bronze-palace}, language = {English}, urldate = {2020-05-23} } BRONZE PALACE
BS2005 Enfal Mirage RoyalCli Royal DNS Mirage
2015-10-17BSK ConsultingFlorian Roth
@online{roth:20151017:how:d7c4f42, author = {Florian Roth}, title = {{How to Write Simple but Sound Yara Rules – Part 2}}, date = {2015-10-17}, organization = {BSK Consulting}, url = {https://www.bsk-consulting.de/2015/10/17/how-to-write-simple-but-sound-yara-rules-part-2/}, language = {English}, urldate = {2019-07-11} } How to Write Simple but Sound Yara Rules – Part 2
Enfal
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_enfal_auto (20210616 | Detects win.enfal.)
rule win_enfal_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.enfal."
        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.enfal"
        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 = { 8bc2 75f1 c3 55 8bec 81ec18030000 }
            // n = 6, score = 200
            //   8bc2                 | mov                 eax, edx
            //   75f1                 | jne                 0xfffffff3
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   81ec18030000         | sub                 esp, 0x318

        $sequence_1 = { 8bf0 3bf7 7508 83c8ff e9???????? 56 }
            // n = 6, score = 200
            //   8bf0                 | mov                 esi, eax
            //   3bf7                 | cmp                 esi, edi
            //   7508                 | jne                 0xa
            //   83c8ff               | or                  eax, 0xffffffff
            //   e9????????           |                     
            //   56                   | push                esi

        $sequence_2 = { ffd6 68???????? 8bf8 ffd6 8b35???????? 8365f800 }
            // n = 6, score = 200
            //   ffd6                 | call                esi
            //   68????????           |                     
            //   8bf8                 | mov                 edi, eax
            //   ffd6                 | call                esi
            //   8b35????????         |                     
            //   8365f800             | and                 dword ptr [ebp - 8], 0

        $sequence_3 = { 50 8d8534fbffff 33f6 6820030000 }
            // n = 4, score = 200
            //   50                   | push                eax
            //   8d8534fbffff         | lea                 eax, dword ptr [ebp - 0x4cc]
            //   33f6                 | xor                 esi, esi
            //   6820030000           | push                0x320

        $sequence_4 = { f3ab 66ab 8065ff00 6800040000 }
            // n = 4, score = 200
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   66ab                 | stosw               word ptr es:[edi], ax
            //   8065ff00             | and                 byte ptr [ebp - 1], 0
            //   6800040000           | push                0x400

        $sequence_5 = { 33c0 8dbdb5f9ffff 80a5b4f5ffff00 f3ab }
            // n = 4, score = 200
            //   33c0                 | xor                 eax, eax
            //   8dbdb5f9ffff         | lea                 edi, dword ptr [ebp - 0x64b]
            //   80a5b4f5ffff00       | and                 byte ptr [ebp - 0xa4c], 0
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax

        $sequence_6 = { 50 e8???????? 59 59 6a19 56 68???????? }
            // n = 7, score = 200
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   6a19                 | push                0x19
            //   56                   | push                esi
            //   68????????           |                     

        $sequence_7 = { 50 e8???????? 8d85c4feffff 50 e8???????? 8945fc 8d45fc }
            // n = 7, score = 200
            //   50                   | push                eax
            //   e8????????           |                     
            //   8d85c4feffff         | lea                 eax, dword ptr [ebp - 0x13c]
            //   50                   | push                eax
            //   e8????????           |                     
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   8d45fc               | lea                 eax, dword ptr [ebp - 4]

        $sequence_8 = { 56 57 e8???????? 6800020000 8d85b4fdffff 6a00 50 }
            // n = 7, score = 200
            //   56                   | push                esi
            //   57                   | push                edi
            //   e8????????           |                     
            //   6800020000           | push                0x200
            //   8d85b4fdffff         | lea                 eax, dword ptr [ebp - 0x24c]
            //   6a00                 | push                0
            //   50                   | push                eax

        $sequence_9 = { 68???????? 50 e8???????? 8d85b4fdffff }
            // n = 4, score = 200
            //   68????????           |                     
            //   50                   | push                eax
            //   e8????????           |                     
            //   8d85b4fdffff         | lea                 eax, dword ptr [ebp - 0x24c]

    condition:
        7 of them and filesize < 65536
}
[TLP:WHITE] win_enfal_w0   (20170410 | Generic Rule to detect the Enfal Malware)
rule win_enfal_w0 {
    meta:
        author = "Florian Roth"
        description = "Generic Rule to detect the Enfal Malware"
        date = "2015/02/10"
        hash = "6d484daba3927fc0744b1bbd7981a56ebef95790"
        hash = "d4071272cc1bf944e3867db299b3f5dce126f82b"
        hash = "6c7c8b804cc76e2c208c6e3b6453cb134d01fa41"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.enfal"
        malpedia_version = "20170410"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:

        $s1 = "Micorsoft Corportation" fullword wide
        $s2 = "IM Monnitor Service" fullword wide

        $x1 = "imemonsvc.dll" fullword wide
        $x2 = "iphlpsvc.tmp" fullword
        $x3 = "{53A4988C-F91F-4054-9076-220AC5EC03F3}" fullword

        $z1 = "urlmon" fullword
        $z2 = "Registered trademarks and service marks are the property of their" wide
        $z3 = "XpsUnregisterServer" fullword
        $z4 = "XpsRegisterServer" fullword
    condition:
        (( 1 of ($s*)) or ( 2 of ($x*) and all of ($z*) ))
}
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