SYMBOLCOMMON_NAMEaka. SYNONYMS
win.nettraveler (Back to overview)

NetTraveler

aka: TravNet

Actor(s): NetTraveler


There is no description at this point.

References
2020-11-27CYBER GEEKS All Things InfosecCyberMasterV
@online{cybermasterv:20201127:dissecting:23d6915, author = {CyberMasterV}, title = {{Dissecting APT21 samples using a step-by-step approach}}, date = {2020-11-27}, organization = {CYBER GEEKS All Things Infosec}, url = {https://cybergeeks.tech/dissecting-apt21-samples-using-a-step-by-step-approach/}, language = {English}, urldate = {2020-12-08} } Dissecting APT21 samples using a step-by-step approach
NetTraveler
2016-07-07ProofpointAxel F
@online{f:20160707:nettraveler:a613df3, author = {Axel F}, title = {{NetTraveler APT Targets Russian, European Interests}}, date = {2016-07-07}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/nettraveler-apt-targets-russian-european-interests}, language = {English}, urldate = {2019-12-20} } NetTraveler APT Targets Russian, European Interests
NetTraveler NetTraveler
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_nettraveler_auto (20220516 | Detects win.nettraveler.)
rule win_nettraveler_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-05-16"
        version = "1"
        description = "Detects win.nettraveler."
        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.nettraveler"
        malpedia_rule_date = "20220513"
        malpedia_hash = "7f4b2229e6ae614d86d74917f6d5b41890e62a26"
        malpedia_version = "20220516"
        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 = { 8d45b8 50 8d45c0 50 8d8510ffffff 50 8d45cc }
            // n = 7, score = 100
            //   8d45b8               | lea                 eax, [ebp - 0x48]
            //   50                   | push                eax
            //   8d45c0               | lea                 eax, [ebp - 0x40]
            //   50                   | push                eax
            //   8d8510ffffff         | lea                 eax, [ebp - 0xf0]
            //   50                   | push                eax
            //   8d45cc               | lea                 eax, [ebp - 0x34]

        $sequence_1 = { 50 ff15???????? 3bc3 8945f4 0f847a020000 391d???????? }
            // n = 6, score = 100
            //   50                   | push                eax
            //   ff15????????         |                     
            //   3bc3                 | cmp                 eax, ebx
            //   8945f4               | mov                 dword ptr [ebp - 0xc], eax
            //   0f847a020000         | je                  0x280
            //   391d????????         |                     

        $sequence_2 = { 33d8 33d9 035df0 8d9c1ff87ca21f 8bfb }
            // n = 5, score = 100
            //   33d8                 | xor                 ebx, eax
            //   33d9                 | xor                 ebx, ecx
            //   035df0               | add                 ebx, dword ptr [ebp - 0x10]
            //   8d9c1ff87ca21f       | lea                 ebx, [edi + ebx + 0x1fa27cf8]
            //   8bfb                 | mov                 edi, ebx

        $sequence_3 = { ffd6 50 ff15???????? 895dfc ff7508 ff15???????? ff75ec }
            // n = 7, score = 100
            //   ffd6                 | call                esi
            //   50                   | push                eax
            //   ff15????????         |                     
            //   895dfc               | mov                 dword ptr [ebp - 4], ebx
            //   ff7508               | push                dword ptr [ebp + 8]
            //   ff15????????         |                     
            //   ff75ec               | push                dword ptr [ebp - 0x14]

        $sequence_4 = { e8???????? 8d45e4 57 50 8d45f0 50 e8???????? }
            // n = 7, score = 100
            //   e8????????           |                     
            //   8d45e4               | lea                 eax, [ebp - 0x1c]
            //   57                   | push                edi
            //   50                   | push                eax
            //   8d45f0               | lea                 eax, [ebp - 0x10]
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_5 = { 8b37 83c704 33f0 897d0c 8bfe }
            // n = 5, score = 100
            //   8b37                 | mov                 esi, dword ptr [edi]
            //   83c704               | add                 edi, 4
            //   33f0                 | xor                 esi, eax
            //   897d0c               | mov                 dword ptr [ebp + 0xc], edi
            //   8bfe                 | mov                 edi, esi

        $sequence_6 = { 0f8678020000 8b45e8 40 8945fc }
            // n = 4, score = 100
            //   0f8678020000         | jbe                 0x27e
            //   8b45e8               | mov                 eax, dword ptr [ebp - 0x18]
            //   40                   | inc                 eax
            //   8945fc               | mov                 dword ptr [ebp - 4], eax

        $sequence_7 = { eb0b 6a03 eb06 6a02 eb02 6a01 }
            // n = 6, score = 100
            //   eb0b                 | jmp                 0xd
            //   6a03                 | push                3
            //   eb06                 | jmp                 8
            //   6a02                 | push                2
            //   eb02                 | jmp                 4
            //   6a01                 | push                1

        $sequence_8 = { ba???????? 0fb69f4c910010 8d8764910010 807c1dc400 7404 8b1a 091e }
            // n = 7, score = 100
            //   ba????????           |                     
            //   0fb69f4c910010       | movzx               ebx, byte ptr [edi + 0x1000914c]
            //   8d8764910010         | lea                 eax, [edi + 0x10009164]
            //   807c1dc400           | cmp                 byte ptr [ebp + ebx - 0x3c], 0
            //   7404                 | je                  6
            //   8b1a                 | mov                 ebx, dword ptr [edx]
            //   091e                 | or                  dword ptr [esi], ebx

        $sequence_9 = { 8945ec 85c0 750b ff45fc 837dfc03 7d34 ebd5 }
            // n = 7, score = 100
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   85c0                 | test                eax, eax
            //   750b                 | jne                 0xd
            //   ff45fc               | inc                 dword ptr [ebp - 4]
            //   837dfc03             | cmp                 dword ptr [ebp - 4], 3
            //   7d34                 | jge                 0x36
            //   ebd5                 | jmp                 0xffffffd7

    condition:
        7 of them and filesize < 106496
}
[TLP:WHITE] win_nettraveler_w0   (20170521 | Identifiers for NetTraveler DLL)
/*
    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.

*/

import "pe"

rule win_nettraveler_w0 {
    meta:
        description = "Identifiers for NetTraveler DLL"
        author = "Katie Kleemola"
        last_updated = "2014-05-20"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nettraveler"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    strings:
        //network strings
        $n1 = "?action=updated&hostid="
        $n2 = "travlerbackinfo"
        $n3 = "?action=getcmd&hostid="
        $n4 = "%s?action=gotcmd&hostid="
        $n5 = "%s?hostid=%s&hostname=%s&hostip=%s&filename=%s&filestart=%u&filetext="

        //debugging strings
        $d1 = "\x00Method1 Fail!!!!!\x00"
        $d2 = "\x00Method3 Fail!!!!!\x00"
        $d3 = "\x00method currect:\x00"
        $d4 = /\x00\x00[\w\-]+ is Running!\x00\x00/
        $d5 = "\x00OtherTwo\x00"

    condition:
        any of them
}
[TLP:WHITE] win_nettraveler_w1   (20170521 | Identifiers for netpass variant)
/*
    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_nettraveler_w1 {
    meta:
        description = "Identifiers for netpass variant"
        author = "Katie Kleemola"
        last_updated = "2014-05-29"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nettraveler"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    strings:
        $exif1 = "Device Protect ApplicatioN" wide
        $exif2 = "beep.sys" wide //embedded exe name
        $exif3 = "BEEP Driver" wide //embedded exe description

        $string1 = "\x00NetPass Update\x00"
        $string2 = "\x00%s:DOWNLOAD\x00"
        $string3 = "\x00%s:UPDATE\x00"
        $string4 = "\x00%s:uNINSTALL\x00"

    condition:
        all of ($exif*) or any of ($string*)
}
[TLP:WHITE] win_nettraveler_w2   (20170521 | Export names for dll component)
/*
    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_nettraveler_w2 {
	meta:
		description = "Export names for dll component"
		author = "Katie Kleemola"
		last_updated = "2014-05-20"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nettraveler"
        malpedia_version = "20170521"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
	
	strings:
		//dll component exports
		$d1 = "?InjectDll@@YAHPAUHWND__@@K@Z"
		$d2 = "?UnmapDll@@YAHXZ"
		$d3 = "?g_bSubclassed@@3HA"
		
	condition:
		any of them
}
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