Categories: Trojan

TrojanDownloader:Win32/Purora removal

The TrojanDownloader:Win32/Purora is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What TrojanDownloader:Win32/Purora virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Enumerates services, possibly for anti-virtualization
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Creates a slightly modified copy of itself
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent hidden files from being displayed

Related domains:

ns1.player1253.com
ns1.videoall.net
ns1.mediashares.org

How to determine TrojanDownloader:Win32/Purora?


File Info:

crc32: EB99F685md5: 8f65c4b8da41a0fdcdeae2eab50d647ename: 8F65C4B8DA41A0FDCDEAE2EAB50D647E.mlwsha1: fea1ffe8cbb769b33726eb26d160b0e69e2ab160sha256: 59503e35537e500067ef3bf204e1def5cacea39201d002e276ef8badffd91556sha512: 27b9f85d691b7eb2dd3bcfe6f3baa8cfcc03333c9f20aa71cf4c0e7f076537f74adee460b5e5621bdfd1676abcf4e80a2570723a3bb0079bd71f6b58cad394bbssdeep: 1536:0bxmz7vst+SbtS0SIImNMlsCSZxIG+UkHoU:HvzRfloUtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0InternalName: z5sOOjAFileVersion: 2.42CompanyName: UserXPProductName: 932sOOjAProductVersion: 2.42OriginalFilename: z5sOOjA.exe

TrojanDownloader:Win32/Purora also known as:

Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.6639
FireEye Generic.mg.8f65c4b8da41a0fd
McAfee Downloader-CJX.gen.l
Cylance Unsafe
VIPRE Trojan-Downloader.Win32.Purora.a (v)
K7AntiVirus Trojan-Downloader ( 001f4fd41 )
BitDefender Gen:Variant.Symmi.6639
K7GW Trojan-Downloader ( 001f4fd41 )
Cybereason malicious.8da41a
Baidu Win32.Worm.AutoRun.cj
Cyren W32/VB.BT.gen!Eldorado
Symantec W32.Changeup!gen20
TotalDefense Win32/Vobfus.F!generic
APEX Malicious
Avast Win32:AutoRun-BSJ [Trj]
ClamAV Win.Trojan.Changeup-6169544-0
Kaspersky Worm.Win32.VBNA.brlr
NANO-Antivirus Trojan.Win32.Mlw.iejaqv
ViRobot Trojan.Win32.Downloader.61440.UJ
Rising Trojan.Win32.VBCode.cbu (CLASSIC)
Ad-Aware Gen:Variant.Symmi.6639
Emsisoft Gen:Variant.Symmi.6639 (B)
Comodo TrojWare.Win32.VB.X@2i170u
F-Secure Trojan:W32/Vbkrypt.D
DrWeb Trojan.Packed.21297
TrendMicro WORM_VOBFUS.SMIA
McAfee-GW-Edition BehavesLike.Win32.Downloader.mz
Sophos ML/PE-A + Troj/VB-KVR
Ikarus Trojan-Dropper
Jiangmin Worm/VBNA.gxfn
Avira TR/Dropper.Gen
MAX malware (ai score=89)
Antiy-AVL Worm/Win32.WBNA.gen
Microsoft TrojanDownloader:Win32/Purora
Arcabit Trojan.Symmi.D19EF
SUPERAntiSpyware Trojan.Agent/Gen-Obfuscator
ZoneAlarm Worm.Win32.VBNA.brlr
GData Gen:Variant.Symmi.6639
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.VBKrypt.R32907
Acronis suspicious
BitDefenderTheta AI:Packer.2F75715320
ALYac Gen:Variant.Symmi.6639
TACHYON Worm/W32.VBNA.90112
VBA32 SScope.Trojan.VBRA.2842
Malwarebytes Purora.Worm.VB.DDS
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/AutoRun.VB.XY
TrendMicro-HouseCall WORM_VOBFUS.SMIA
Yandex Trojan.GenAsa!LeaBETo6kWM
SentinelOne Static AI – Malicious PE – Worm
eGambit Unsafe.AI_Score_99%
Fortinet W32/Virtu.F
AVG Win32:AutoRun-BSJ [Trj]
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 HEUR/QVM03.0.0510.Malware.Gen

How to remove TrojanDownloader:Win32/Purora?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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