SYMBOLCOMMON_NAMEaka. SYNONYMS
win.httpbrowser (Back to overview)

HttpBrowser

aka: HttpDump

Actor(s): Wekby, EMISSARY PANDA


There is no description at this point.

References
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
2018-05-18NCC GroupNikolaos Pantazopoulos, Thomas Henry
@online{pantazopoulos:20180518:emissary:ed9583a, author = {Nikolaos Pantazopoulos and Thomas Henry}, title = {{Emissary Panda – A potential new malicious tool}}, date = {2018-05-18}, organization = {NCC Group}, url = {https://www.nccgroup.trust/uk/about-us/newsroom-and-events/blogs/2018/may/emissary-panda-a-potential-new-malicious-tool/}, language = {English}, urldate = {2021-03-22} } Emissary Panda – A potential new malicious tool
HttpBrowser
2016-10-17ThreatConnectThreatConnect
@online{threatconnect:20161017:tale:b318dae, author = {ThreatConnect}, title = {{A Tale of Two Targets}}, date = {2016-10-17}, organization = {ThreatConnect}, url = {https://www.threatconnect.com/blog/threatconnect-discovers-chinese-apt-activity-in-europe/}, language = {English}, urldate = {2019-12-02} } A Tale of Two Targets
HttpBrowser EMISSARY PANDA
2015-02-27ThreatConnectThreatConnect Research Team
@online{team:20150227:anthem:ac7d814, author = {ThreatConnect Research Team}, title = {{The Anthem Hack: All Roads Lead to China}}, date = {2015-02-27}, organization = {ThreatConnect}, url = {https://threatconnect.com/blog/the-anthem-hack-all-roads-lead-to-china/}, language = {English}, urldate = {2020-04-06} } The Anthem Hack: All Roads Lead to China
HttpBrowser
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_httpbrowser_auto (20210616 | Detects win.httpbrowser.)
rule win_httpbrowser_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.httpbrowser."
        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.httpbrowser"
        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 = { 56 ffb5bcfbffff ff15???????? f7d8 1bc0 f7d8 }
            // n = 6, score = 200
            //   56                   | push                esi
            //   ffb5bcfbffff         | push                dword ptr [ebp - 0x444]
            //   ff15????????         |                     
            //   f7d8                 | neg                 eax
            //   1bc0                 | sbb                 eax, eax
            //   f7d8                 | neg                 eax

        $sequence_1 = { 68???????? 8d85e4fbffff 50 ffd7 6a40 8d8578fbffff }
            // n = 6, score = 200
            //   68????????           |                     
            //   8d85e4fbffff         | lea                 eax, dword ptr [ebp - 0x41c]
            //   50                   | push                eax
            //   ffd7                 | call                edi
            //   6a40                 | push                0x40
            //   8d8578fbffff         | lea                 eax, dword ptr [ebp - 0x488]

        $sequence_2 = { 56 ff15???????? 83c40c 6a05 }
            // n = 4, score = 200
            //   56                   | push                esi
            //   ff15????????         |                     
            //   83c40c               | add                 esp, 0xc
            //   6a05                 | push                5

        $sequence_3 = { 0f84c2000000 8d85ecfdffff 68???????? 50 ff15???????? 8bf8 }
            // n = 6, score = 200
            //   0f84c2000000         | je                  0xc8
            //   8d85ecfdffff         | lea                 eax, dword ptr [ebp - 0x214]
            //   68????????           |                     
            //   50                   | push                eax
            //   ff15????????         |                     
            //   8bf8                 | mov                 edi, eax

        $sequence_4 = { 50 ffd7 33c0 53 668985ecfdffff 8d85eefdffff }
            // n = 6, score = 200
            //   50                   | push                eax
            //   ffd7                 | call                edi
            //   33c0                 | xor                 eax, eax
            //   53                   | push                ebx
            //   668985ecfdffff       | mov                 word ptr [ebp - 0x214], ax
            //   8d85eefdffff         | lea                 eax, dword ptr [ebp - 0x212]

        $sequence_5 = { 59 be???????? f3a5 66a5 33c0 }
            // n = 5, score = 200
            //   59                   | pop                 ecx
            //   be????????           |                     
            //   f3a5                 | rep movsd           dword ptr es:[edi], dword ptr [esi]
            //   66a5                 | movsw               word ptr es:[edi], word ptr [esi]
            //   33c0                 | xor                 eax, eax

        $sequence_6 = { ffd6 85c0 745e 39bda0feffff 7519 }
            // n = 5, score = 200
            //   ffd6                 | call                esi
            //   85c0                 | test                eax, eax
            //   745e                 | je                  0x60
            //   39bda0feffff         | cmp                 dword ptr [ebp - 0x160], edi
            //   7519                 | jne                 0x1b

        $sequence_7 = { 8dbda8fcffff a5 a5 a5 a5 385d08 }
            // n = 6, score = 200
            //   8dbda8fcffff         | lea                 edi, dword ptr [ebp - 0x358]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   a5                   | movsd               dword ptr es:[edi], dword ptr [esi]
            //   385d08               | cmp                 byte ptr [ebp + 8], bl

        $sequence_8 = { ff15???????? 6a00 6880000000 6a02 6a00 6a02 8d9514fdffff }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   6a00                 | push                0
            //   6880000000           | push                0x80
            //   6a02                 | push                2
            //   6a00                 | push                0
            //   6a02                 | push                2
            //   8d9514fdffff         | lea                 edx, dword ptr [ebp - 0x2ec]

        $sequence_9 = { 5d 5d 9d 5d 50 55 8bec }
            // n = 7, score = 100
            //   5d                   | pop                 ebp
            //   5d                   | pop                 ebp
            //   9d                   | popfd               
            //   5d                   | pop                 ebp
            //   50                   | push                eax
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp

        $sequence_10 = { ff15???????? 8b7d0c 8d45ec 6a00 50 8d4df8 57 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   8b7d0c               | mov                 edi, dword ptr [ebp + 0xc]
            //   8d45ec               | lea                 eax, dword ptr [ebp - 0x14]
            //   6a00                 | push                0
            //   50                   | push                eax
            //   8d4df8               | lea                 ecx, dword ptr [ebp - 8]
            //   57                   | push                edi

        $sequence_11 = { 85d2 8955fc 0f859d000000 50 }
            // n = 4, score = 100
            //   85d2                 | test                edx, edx
            //   8955fc               | mov                 dword ptr [ebp - 4], edx
            //   0f859d000000         | jne                 0xa3
            //   50                   | push                eax

        $sequence_12 = { 33c0 8dbdedc7ffff c685ecc7ffff00 f3ab 8b5510 c745f000280000 }
            // n = 6, score = 100
            //   33c0                 | xor                 eax, eax
            //   8dbdedc7ffff         | lea                 edi, dword ptr [ebp - 0x3813]
            //   c685ecc7ffff00       | mov                 byte ptr [ebp - 0x3814], 0
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   8b5510               | mov                 edx, dword ptr [ebp + 0x10]
            //   c745f000280000       | mov                 dword ptr [ebp - 0x10], 0x2800

        $sequence_13 = { 5d 9d 5d 8b75ec bb01000000 56 }
            // n = 6, score = 100
            //   5d                   | pop                 ebp
            //   9d                   | popfd               
            //   5d                   | pop                 ebp
            //   8b75ec               | mov                 esi, dword ptr [ebp - 0x14]
            //   bb01000000           | mov                 ebx, 1
            //   56                   | push                esi

        $sequence_14 = { ff15???????? b9ff070000 33c0 8dbda0c5ffff f3ab 66ab }
            // n = 6, score = 100
            //   ff15????????         |                     
            //   b9ff070000           | mov                 ecx, 0x7ff
            //   33c0                 | xor                 eax, eax
            //   8dbda0c5ffff         | lea                 edi, dword ptr [ebp - 0x3a60]
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   66ab                 | stosw               word ptr es:[edi], ax

        $sequence_15 = { 5d 8b4dfc 51 52 8b5508 6aff 52 }
            // n = 7, score = 100
            //   5d                   | pop                 ebp
            //   8b4dfc               | mov                 ecx, dword ptr [ebp - 4]
            //   51                   | push                ecx
            //   52                   | push                edx
            //   8b5508               | mov                 edx, dword ptr [ebp + 8]
            //   6aff                 | push                -1
            //   52                   | push                edx

    condition:
        7 of them and filesize < 188416
}
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