Categories: Trojan

Trojan.Tonmye.A4 removal tips

The Trojan.Tonmye.A4 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 Trojan.Tonmye.A4 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Injection with CreateRemoteThread in a remote process
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Attempts to modify proxy settings
  • Attempts to modify browser security settings
  • Creates a copy of itself
  • Deletes executed files from disk
  • Harvests cookies for information gathering

How to determine Trojan.Tonmye.A4?


File Info:

name: 856F823A2D0DC0EA92E9.mlwpath: /opt/CAPEv2/storage/binaries/a7fb7a8acbded33669de1879fe250942768cf5b74285c26fa6cbc64969c24b6dcrc32: 90562F46md5: 856f823a2d0dc0ea92e9a2c81185ec5esha1: 94a3a6a3418d3d27596639c567e1e4b1124dc7e9sha256: a7fb7a8acbded33669de1879fe250942768cf5b74285c26fa6cbc64969c24b6dsha512: 55028bc574e43b15b374d1d583f3e45e6cd5ab0947ef4750f67d55b9813c81b82a9c271fa209630052d3a6149784ded92f1503d350aabb0ce7ded88d2053a711ssdeep: 49152:ITMlxnTABV9276ncfN+UyT+UkO/acWJrAja5Rb4wME+iId+qrViN1hdpxtVBwcEM:6MlxnTABV9276ncfN+UyT+UkO/acWJrTtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T12FA59D23E19180F1D20200712AF697399D79BB660D25CBA7DBE0DEF85D613E1DA2731Esha3_384: 1aa4e9745637b8331feed8828288ff040b8f9dbaeb0878466867c6457608144c01be8b1bc1972b76e800777ff11025bdep_bytes: e81f770000e978feffffb8faf14a00a3timestamp: 2016-08-22 07:58:22

Version Info:

FileVersion: 6.7.9.3FileDescription: ProductName: ProductVersion: 6.7.9.3CompanyName: LegalCopyright: Comments: 本程序使用易语言编写(http://www.dywt.com.cn)Translation: 0x0804 0x04b0

Trojan.Tonmye.A4 also known as:

Bkav W32.AIDetect.malware2
tehtris Generic.Malware
DrWeb Trojan.DownLoader23.7752
MicroWorld-eScan Gen:Variant.Doina.8131
FireEye Generic.mg.856f823a2d0dc0ea
CAT-QuickHeal Trojan.Tonmye.A4
ALYac Gen:Variant.Doina.8131
Cylance Unsafe
Zillya Adware.Hebchengjiu.Win32.18
Sangfor Virus.Win32.Save.a
K7AntiVirus Adware ( 004f4efb1 )
K7GW Adware ( 004f4efb1 )
CrowdStrike win/grayware_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.34646.fs1@aSRJwYob
Cyren W32/S-54031f37!Eldorado
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Adware.Hebchengjiu.A
TrendMicro-HouseCall TROJ_GEN.R035C0OID22
ClamAV Win.Malware.Mikey-6718286-0
Kaspersky not-a-virus:HEUR:AdWare.Win32.Generic
BitDefender Gen:Variant.Doina.8131
NANO-Antivirus Riskware.Win32.FlyStudio.egioic
Avast Win32:Evo-gen [Trj]
Rising Trojan.ClickDouTu!1.A668 (CLASSIC)
Ad-Aware Gen:Variant.Doina.8131
Comodo TrojWare.Win32.Agent.OSCF@5rs7jr
VIPRE Gen:Variant.Doina.8131
TrendMicro TROJ_GEN.R035C0OID22
McAfee-GW-Edition BehavesLike.Win32.Generic.vh
SentinelOne Static AI – Malicious PE
Trapmine malicious.moderate.ml.score
Emsisoft Gen:Variant.Doina.8131 (B)
Ikarus Trojan.Win32.Tonmye
GData Win32.Trojan.PSE.10V60DG
Jiangmin TrojanDropper.Injector.bjta
Google Detected
Avira HEUR/AGEN.1229234
Antiy-AVL Trojan/Generic.ASMalwS.3B95
Arcabit Trojan.Doina.D1FC3
Microsoft Trojan:Win32/Wacatac.A!ml
Cynet Malicious (score: 100)
AhnLab-V3 PUP/Win32.Helper.R189978
Acronis suspicious
McAfee GenericR-IOJ!856F823A2D0D
VBA32 BScope.Trojan.Downloader
Malwarebytes Generic.Trojan.Malicious.DDS
APEX Malicious
Tencent Adware.Win32.Hebchengjiu.16000480
Yandex Trojan.GenAsa!/TttOAwCcdc
MAX malware (ai score=85)
Fortinet Adware/Hebchengjiu.A
AVG Win32:Evo-gen [Trj]
Cybereason malicious.a2d0dc
Panda Trj/Genetic.gen

How to remove Trojan.Tonmye.A4?

  • 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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