Categories: Malware

How to remove “Symmi.3155”?

The Symmi.3155 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Symmi.3155 virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Sniffs keystrokes
  • Behavioural detection: Injection (inter-process)
  • Installs itself for autorun at Windows startup
  • Anomalous binary characteristics

How to determine Symmi.3155?


File Info:

name: F0922B82393B3C657866.mlwpath: /opt/CAPEv2/storage/binaries/773a6b56a08d5f8c1247fe9760580c8c40ae8606fb6bb395fe0d4fb511b07d91crc32: DCE4467Cmd5: f0922b82393b3c657866fa823cd85fcasha1: 7a25141c1d489515a3fd7541f27b815e718aaeb5sha256: 773a6b56a08d5f8c1247fe9760580c8c40ae8606fb6bb395fe0d4fb511b07d91sha512: 56c184f25600df9e2153eefc2b16083da3f69682b383227b8179370032d59338b71cdd3499881177acf61be9284e4e29c52102f7f295eaa68c5792567e5d505cssdeep: 768:ms8yR3DCM8lvuAWMfuLyWIBZEmnzHwOOP22HmIVLrRx1jz/CS:moFeWXkuvynkOa5HmSL1x1jzatype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1A533E087ECE348FAE1188BB98D65B09FBB666B401D40418ACA195CDFCC8DE40393CF65sha3_384: b7d8c1fa669ae988915e2169dc50adeb18c8305e98f39e46a9fc60a0d78dbbb3e91448e5f641b9802ff0cf1ea49fad44ep_bytes: 558bec83c4f0b8e4404000e854f5fffftimestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

Symmi.3155 also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Gimemo.j!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.3155
FireEye Generic.mg.f0922b82393b3c65
McAfee Artemis!F0922B82393B
Cylance Unsafe
Zillya Trojan.Gimemo.Win32.4095
Sangfor Hacktool.Win32.Obfuscator.ACD
K7AntiVirus Trojan ( 0040f2c31 )
Alibaba VirTool:Win32/Obfuscator.c0944b14
K7GW Trojan ( 0040f2c31 )
Cybereason malicious.2393b3
BitDefenderTheta AI:Packer.02406B221F
VirIT Backdoor.Win32.Generic.BNVG
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/LockScreen.AKW
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Symmi.3155
NANO-Antivirus Trojan.Win32.Ransom.zsvvi
Avast Win32:Citadel-Z [Trj]
Tencent Win32.Trojan.Lockscreen.Ebpy
Ad-Aware Gen:Variant.Symmi.3155
Emsisoft Gen:Variant.Symmi.3155 (B)
Comodo TrojWare.Win32.Kryptik.NJDA@4rd0tu
DrWeb Trojan.Winlock.6234
VIPRE Trojan.Win32.Ransomware.A (v)
TrendMicro TROJ_RANSOM.SMO6
McAfee-GW-Edition BehavesLike.Win32.Eggnog.qh
Sophos Mal/Generic-R + Mal/EncPk-AGD
Ikarus Trojan-Dropper.Win32.Dapato
Jiangmin Trojan/Gimemo.ehc
Webroot W32.Malware.Gen
Avira TR/Injector.EB.27
Antiy-AVL Trojan/Generic.ASMalwS.4F506
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Loktrom.B
Gridinsoft Ransom.Win32.AI.sa
Arcabit Trojan.Symmi.DC53
ViRobot Trojan.Win32.A.Gimemo.53248.D
GData Gen:Variant.Symmi.3155
Cynet Malicious (score: 99)
AhnLab-V3 Trojan/Win32.Inject.C159234
VBA32 Malware-Cryptor.Inject.gen
ALYac Gen:Variant.Symmi.3155
MAX malware (ai score=100)
Malwarebytes Malware.AI.1991942481
TrendMicro-HouseCall TROJ_RANSOM.SMO6
Rising Trojan.Generic!8.C3 (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet W32/Injector.WCT!tr
AVG Win32:Citadel-Z [Trj]
Panda Trj/Velphi.b
CrowdStrike win/malicious_confidence_100% (W)
MaxSecure Trojan.Malware.4697985.susgen

How to remove Symmi.3155?

  • 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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