Win32:Mutex-B [Trj] removal guide

The Win32:Mutex-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.

What Win32:Mutex-B [Trj] virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Performs HTTP requests potentially not found in PCAP.
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware
• Attempts to modify proxy settings
• Attempts to ensure mapped drives are available from an elevated prompt or process with UAC enabled
• Anomalous binary characteristics
• Uses suspicious command line tools or Windows utilities

How to determine Win32:Mutex-B [Trj]?

File Info:
name: 127BD95368F39AF7681E.mlwpath: /opt/CAPEv2/storage/binaries/b0f6596b28e0d1032c379593fa657c27e59b85fec3e72602b6f0312b535501d8crc32: CF162EC3md5: 127bd95368f39af7681ee101f04d670fsha1: c941fc1e53b57e9b5c323065660f139f0730b8e5sha256: b0f6596b28e0d1032c379593fa657c27e59b85fec3e72602b6f0312b535501d8sha512: db41371fbc121f3a86440d6dd64db7cc733ab374081f0df7b4289ecbe88a8cbc1ebd9de49d8c8e45eb8ca0235e54049c48aa93eac63d8c7784ee72accc1c211dssdeep: 6144:QpqpF/yLKs5jiQm+FMA5na0PpdoeBTO5fOfX8oXFHch:QpWyKAW1+1aEpaAC53gF8htype: PE32 executable (console) Intel 80386, for MS Windowstlsh: T1AA64D0B8D6BF59F4FD186BB5D0B9D17D37044108C564932CFA902ACDB0A6AC6BB439C8sha3_384: 72a3194b5a0c851bec028514a7ab56d9299c3db064242228861542bdd0c565665b9a6b6a2c13890fc63a67f2886405b3ep_bytes: 8935544c4400893d584c4400891d5c4ctimestamp: 2016-03-12 22:05:03
Version Info:
CompanyName: Microsoft CorporationFileDescription: Routing UtilitiesFileVersion: 10.0.10240.16384 (th1.150709-1700)InternalName: RTUTILS.DLLLegalCopyright: © Microsoft Corporation. All rights reserved.OriginalFilename: RTUTILS.DLLProductName: Microsoft® Windows® Operating SystemProductVersion: 10.0.10240.16384Translation: 0x0409 0x04b0

Win32:Mutex-B [Trj] also known as:

How to remove Win32:Mutex-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.