Categories: Malware

About “Downloader.Win32.Agent.mjht” infection

The Downloader.Win32.Agent.mjht 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 Downloader.Win32.Agent.mjht virus can do?

  • Executable code extraction
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • Attempts to connect to a dead IP:Port (14 unique times)
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • Steals private information from local Internet browsers
  • Attempts to modify proxy settings

Related domains:

z.whorecord.xyz
a.tomx.xyz
w.nanweng.cn
www.msn.com
static-global-s-msn-com.akamaized.net
web.vortex.data.msn.com
ocsp.digicert.com
ocsp.msocsp.com
img-s-msn-com.akamaized.net

How to determine Downloader.Win32.Agent.mjht?


File Info:

crc32: 93EA0434md5: d728abd6e97793a989f65243dc7e5538name: zoom-E794B5E88491E789881808_123762.exesha1: e785f9e901080ed3acefac105d9a1977aad1f6dcsha256: d0239a266ffa2a3221cc473d36e62a71403184199b8198262e016fec46476239sha512: 913ad7de3ed0fc62325657b9831fe97f8ed3a0e562e3d6e82c98867b9a7fc1b1d3f677dc2cfa24aa0a0e97477741fb9d0654d1aa9ffdf6c322530ea55dbedd28ssdeep: 24576:1PFwAnd6PHY7y1KeLgFKkDhd+Rvo3IQNYG9Ojps5d:KPY+yiOd9ks5dtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2020InternalName: x667ax80fdx4e0bx8f7dx5668.exeFileVersion: 5.0.0.0619ProductName: x667ax80fdx4e0bx8f7dx5668.exeFileDescription: _OriginalFilename: x667ax80fdx4e0bx8f7dx5668.exeTranslation: 0x0804 0x04b0

Downloader.Win32.Agent.mjht also known as:

MicroWorld-eScan Gen:Variant.Adware.Zusy.189946
FireEye Gen:Variant.Adware.Zusy.189946
McAfee GenericRXAA-AA!D728ABD6E977
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
K7AntiVirus Adware ( 005694e51 )
BitDefender Gen:Variant.Adware.Zusy.189946
K7GW Adware ( 00510c5c1 )
TrendMicro Trojan.Win32.WACATAC.USXVPG220
Symantec PUA.Gen.2
APEX Malicious
Avast Win32:AdwareX-gen [Adw]
GData Gen:Variant.Adware.Zusy.189946
Kaspersky not-a-virus:Downloader.Win32.Agent.mjht
Alibaba Downloader:Win32/Qjwmonkey.12f30f58
NANO-Antivirus Riskware.Win32.Qjwmonkey.hmohro
Rising Adware.Qjwmonkey!8.18F (CLOUD)
Endgame malicious (high confidence)
Emsisoft Application.Downloader (A)
F-Secure Adware.ADWARE/Qjwmonkey.ygcuy
DrWeb Adware.Qjwmonkey.168
MaxSecure Trojan.Malware.121218.susgen
Sophos Generic PUA OH (PUA)
Cyren W32/Adware.GVGY-6589
Jiangmin Downloader.Agent.noz
Webroot W32.Adware.Gen
Avira ADWARE/Qjwmonkey.ygcuy
Antiy-AVL RiskWare[Downloader]/Win32.Agent
Microsoft PUA:Win32/Qjwmonkey
Arcabit Trojan.Adware.Zusy.D2E5FA
ZoneAlarm not-a-virus:Downloader.Win32.Agent.mjht
Cynet Malicious (score: 85)
AhnLab-V3 PUP/Win32.Qjwmonkey.C4156179
ALYac Gen:Variant.Adware.Zusy.189946
MAX malware (ai score=63)
VBA32 BScope.TrojanDropper.Dapato
Malwarebytes Adware.ChinAd
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Adware.Qjwmonkey.H
TrendMicro-HouseCall Trojan.Win32.WACATAC.USXVPG220
Tencent Malware.Win32.Gencirc.119f9214
eGambit Trojan.Generic
Fortinet Riskware/Agent
Ad-Aware Gen:Variant.Adware.Zusy.189946
AVG Win32:AdwareX-gen [Adw]
Paloalto generic.ml

How to remove Downloader.Win32.Agent.mjht?

  • 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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