Categories: Malware

Symmi.21812 (B) removal

The Symmi.21812 (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.21812 (B) virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the embedded pe malware family
  • Attempts to disable Windows Auto Updates
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Symmi.21812 (B)?


File Info:

name: 4654FEF3AE088D726A1B.mlwpath: /opt/CAPEv2/storage/binaries/e9a3336a2e237f65f1b39612c6fec19e027eda31c4d23b1348008b23f678eab6crc32: 4144A02Fmd5: 4654fef3ae088d726a1b20e6f5a481c5sha1: 461bdb27bb08149ab39df00d5f8533f66fa4a583sha256: e9a3336a2e237f65f1b39612c6fec19e027eda31c4d23b1348008b23f678eab6sha512: ef60d452d0fb24eef38c2369d13cdb46b19bc17afbb046fc881d7ca78a0662d7b9670c90e3bca365e83210dd80e44bef891633d7e7b0254abc1d36641fffee2essdeep: 3072:pJsnFgcQPGDQicxBrGB+GJuyGI/YL1oxR8oXQ1:pJstQP4aGjQyM1yBg1type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13314A43A7290A73ED425C7F87CAE83A4502DAD3511C5A417F7C12B1A72E2AF79220767sha3_384: fc535158bf41c607d2d069eb40bad157901bdf7c58f4e471f8be7085ad244615e7e2f195882f72328bcadd086be8f704ep_bytes: 6850434000e8f0ffffff000000000000timestamp: 2012-03-14 07:48:39

Version Info:

FileVersion: 3.00ProductVersion: 3.00Translation: 0x0409 0x04b0

Symmi.21812 (B) also known as:

Bkav W32.AIDetectMalware
Lionic Worm.Win32.WBNA.lv1H
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.21812
FireEye Generic.mg.4654fef3ae088d72
CAT-QuickHeal Trojan.Beebone.D
Skyhigh BehavesLike.Win32.VBObfus.cm
McAfee Generic VB.kk
Cylance unsafe
Zillya Worm.Vobfus.Win32.1517040
Sangfor Suspicious.Win32.Save.vb
Alibaba Worm:Win32/Vobfus.630f1684
K7GW EmailWorm ( 0054d10f1 )
K7AntiVirus EmailWorm ( 0054d10f1 )
BitDefenderTheta Gen:NN.ZevbaF.36804.mm0@a4bzilbi
VirIT Trojan.Win32.SHeur4.UJB
Paloalto generic.ml
Symantec W32.Changeup
tehtris Generic.Malware
ESET-NOD32 Win32/AutoRun.VB.ATG
APEX Malicious
TrendMicro-HouseCall WORM_VOBFUS.SMD1
Avast Win32:VB-ABRW [Trj]
ClamAV Win.Trojan.Changeup-6169544-0
Kaspersky Worm.Win32.Vobfus.dgkf
BitDefender Gen:Variant.Symmi.21812
NANO-Antivirus Trojan.Win32.VB.cihugc
Tencent Worm.Win32.Vobfus.n
Emsisoft Gen:Variant.Symmi.21812 (B)
Baidu Win32.Worm.Pronny.d
F-Secure Worm.WORM/VBNA.bztzre
DrWeb Trojan.VbCrypt.81
VIPRE Gen:Variant.Symmi.21812
TrendMicro WORM_VOBFUS.SMD1
Trapmine malicious.high.ml.score
Sophos Mal/SillyFDC-AC
Ikarus Worm.Win32.Vobfus
MAX malware (ai score=100)
Jiangmin Trojan/Vbobf.b
Webroot W32.Worm.Gen
Google Detected
Avira WORM/VBNA.bztzre
Varist W32/Vobfus.AD.gen!Eldorado
Antiy-AVL Worm/Win32.WBNA.gen
Kingsoft Win32.Worm.Vobfus.dgkf
Microsoft Worm:Win32/Vobfus.gen!R
Xcitium Worm.Win32.VB.AUA@4o7zkg
Arcabit Trojan.Symmi.D5534
ViRobot Worm.Win32.A.WBNA.200704.BQ
ZoneAlarm Worm.Win32.Vobfus.dgkf
GData Gen:Variant.Symmi.21812
Cynet Malicious (score: 100)
AhnLab-V3 Worm/Win32.WBNA.R22840
Acronis suspicious
VBA32 BScope.Trojan.VB.Onechki
ALYac Gen:Variant.Symmi.21812
TACHYON Worm/W32.Vobfus.200704.C
Malwarebytes Generic.Malware.AI.DDS
Panda W32/Vobfus.GEW.worm
Rising Worm.Autorun!8.50 (TFE:3:NUyINK2O6IT)
Yandex Trojan.GenAsa!hW3s5gOKwOE
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/VBKrypt.C!tr
AVG Win32:VB-ABRW [Trj]
DeepInstinct MALICIOUS
alibabacloud Worm:Win/Vobfus.79c03e1a

How to remove Symmi.21812 (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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