Categories: Malware

Should I remove “JS:Browsermodifier-B [Trj]”?

The JS:Browsermodifier-B [Trj] 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 JS:Browsermodifier-B [Trj] virus can do?

  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Steals private information from local Internet browsers
  • Installs itself for autorun at Windows startup
  • Network activity detected but not expressed in API logs
  • Attempts to create or modify a Browser Helper Object
  • Anomalous binary characteristics

How to determine JS:Browsermodifier-B [Trj]?


File Info:

crc32: A57E334Dmd5: 7ff3623338089241b470d80918f4c96dname: 7FF3623338089241B470D80918F4C96D.mlwsha1: d997a75aa22f29828318eb6182672b3199b12360sha256: b46523ffe4ac4a37d3bc04d993734569134535f887f95a2ae048551387b16501sha512: 8a9c91a67a7c10cc3a1c91f24d6ac6abe48fa0c0d81309d07180782ee767dfe0cc541a38a96abc943c515144ae9ee4a128ee1a1516a6e46e6c2d9922eee24f89ssdeep: 6144:h1OgDPdkBAFZWjadD4s5cf9JZxAl+JViimSTu2mgLH+rb:h1OgLdaOmJ9mSTjRz+ftype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 1999-2010 Igor PavlovInternalName: 7zS.sfxFileVersion: 9.20CompanyName: Igor PavlovProductName: 7-ZipProductVersion: 9.20FileDescription: 7z Setup SFXOriginalFilename: 7zS.sfx.exeTranslation: 0x0409 0x04b0

JS:Browsermodifier-B [Trj] also known as:

Elastic malicious (high confidence)
DrWeb JS.Plugin.13
ClamAV Legacy.Trojan.Trojan-1039
CAT-QuickHeal Diplugem.JS.A
McAfee Downloader-FLN
Cylance Unsafe
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba AdWare:Script/MegaSearch.d5ca6f8b
Cybereason malicious.338089
Cyren JS/MegaSearch.A.gen
Symantec ML.Attribute.HighConfidence
ESET-NOD32 multiple detections
APEX Malicious
Avast JS:Browsermodifier-B [Trj]
Cynet Malicious (score: 100)
Kaspersky not-a-virus:AdWare.Win32.MegaSearch.am
BitDefender Dropped:Adware.JS.MultiPlug.A
NANO-Antivirus Riskware.Script.Plugin.cjvvyt
MicroWorld-eScan Dropped:Adware.JS.MultiPlug.A
Sophos Generic ML PUA (PUA)
Comodo Application.Win32.Multiplug.D@4rev5n
F-Secure Malware.JS/ChBrowser.987452
VIPRE Trojan.Win32.Generic!BT
TrendMicro ADW_MULTIPLUG
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Dropped:Adware.JS.MultiPlug.A (B)
Jiangmin AdWare.Script.q
eGambit Generic.Adware
Avira ADWARE/Adware.Gen7
Antiy-AVL GrayWare[AdWare]/JS.MultiPlug.l
Microsoft Trojan:Win32/Wacatac.A!ml
ZoneAlarm not-a-virus:HEUR:AdWare.Script.Generic
GData Win32.Trojan.Multiplug.E
TACHYON Trojan-Clicker/W32.MegaSearch.261548
Acronis suspicious
VBA32 Adware.MultiPlug
Malwarebytes PUP.Optional.MultiPlug
Panda Trj/CI.A
TrendMicro-HouseCall ADW_MULTIPLUG
Yandex PUA.Agent!oLP4FA1o/W4
Ikarus Trojan.Script
Fortinet Adware/MultiPlug
AVG JS:Browsermodifier-B [Trj]

How to remove JS:Browsermodifier-B [Trj]?

  • 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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