Categories: Malware

Symmi.6639 (B) removal instruction

The Symmi.6639 (B) 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 Symmi.6639 (B) virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (1 unique times)
  • A process attempted to delay the analysis task.
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • 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 Symmi.6639 (B)?


File Info:

crc32: A48ACC59md5: d458679269fc7142e274f2f2aea0d3a6name: D458679269FC7142E274F2F2AEA0D3A6.mlwsha1: 7355f6d21a3ef39abb39552c46f6476f94edcb18sha256: dd15be75b24365c134b1a7c212a433481414d36d6777013e6167f6afaf5161d0sha512: a30da0ce0018308e4b168b7e6227f60a4eaf96651c157845f8fe0c41675d550eefbdc396b60386cbe886056d4409d74587a8bb2060f0c59968995b97745e52fbssdeep: 1536:nbxw47vst+SbtS0SIImNMlsCSZxIG+UkHoM:HvzRfloMtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0InternalName: z5AAokcFileVersion: 8.50CompanyName: UserXPProductName: 932AAokcProductVersion: 8.50OriginalFilename: z5AAokc.exe

Symmi.6639 (B) also known as:

Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Packed.21297
MicroWorld-eScan Gen:Variant.Symmi.6639
FireEye Generic.mg.d458679269fc7142
McAfee Downloader-CJX.gen.l
Cylance Unsafe
VIPRE Trojan-Downloader.Win32.Purora.a (v)
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (D)
BitDefender Gen:Variant.Symmi.6639
K7GW Trojan-Downloader ( 001f4fd41 )
K7AntiVirus Trojan-Downloader ( 001f4fd41 )
BitDefenderTheta AI:Packer.2F75715320
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
Baidu Win32.Worm.AutoRun.cj
TrendMicro WORM_VOBFUS.SMIA
McAfee-GW-Edition BehavesLike.Win32.Downloader.mz
Sophos ML/PE-A + Troj/VB-KVR
SentinelOne Static AI – Malicious PE – Worm
Jiangmin Worm/VBNA.gxfn
eGambit Unsafe.AI_Score_99%
Avira TR/Dropper.Gen
MAX malware (ai score=80)
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
ALYac Gen:Variant.Symmi.6639
TACHYON Worm/W32.VBNA.90112
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
Ikarus Trojan-Dropper
Fortinet W32/Virtu.F
AVG Win32:AutoRun-BSJ [Trj]
Qihoo-360 HEUR/QVM03.0.057B.Malware.Gen

How to remove Symmi.6639 (B)?

  • 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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