Categories: Malware

How to remove “Brresmon.126 (B)”?

The Brresmon.126 (B) 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 Brresmon.126 (B) virus can do?

  • Executable code extraction
  • Injection with CreateRemoteThread in a remote process
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Queries information on disks for anti-virtualization via Device Information APIs
  • Sniffs keystrokes
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Steals private information from local Internet browsers
  • A system process is generating network traffic likely as a result of process injection
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Creates a hidden or system file
  • Checks the version of Bios, possibly for anti-virtualization
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Creates a slightly modified copy of itself
  • Collects information to fingerprint the system
  • Clears web history
  • Uses suspicious command line tools or Windows utilities

How to determine Brresmon.126 (B)?


File Info:

crc32: 289C7057md5: 99516eeec930f9308cc375f3196085e4name: 99516EEEC930F9308CC375F3196085E4.mlwsha1: cfdcc103037e140c82163e015d6906b6d6927177sha256: 5218b9083ec544808c0c22404ee8b27d0a36cb97c1ec340fa81549bb167ddd2bsha512: d2f39ebcbced9376e98147e68976abc3de1010ce9bd9b927328ec6e1f8633bb3732cf407ff2b4d69aaa02d06338a2788d16252380761d691a67344d71c82f993ssdeep: 12288:/c6onit5B1/1a3S8yMP5GBATkLBQtECczAlGW0/9GbRYUv3R6RKDlCmjO:/+itnRMhVTkeiCczAG/9eiQpFOtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Brresmon.126 (B) also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Spyware ( 00505c591 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Papras.3566
Cynet Malicious (score: 100)
ALYac Gen:Variant.Brresmon.126
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.138922
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
K7GW Spyware ( 00505c591 )
Cybereason malicious.ec930f
Symantec Trojan Horse
ESET-NOD32 Win32/Spy.Ursnif.AO
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Foreign.nzwf
BitDefender Gen:Variant.Brresmon.126
NANO-Antivirus Trojan.Win32.Papras.fbotvd
MicroWorld-eScan Gen:Variant.Brresmon.126
Tencent Win32.Trojan.Foreign.Htvl
Ad-Aware Gen:Variant.Brresmon.126
Sophos Mal/Generic-S
Comodo Malware@#20un6f7nxsamy
BitDefenderTheta Gen:NN.ZexaF.34628.ZmGfa01d0yni
VIPRE Trojan.Win32.Generic!BT
TrendMicro TSPY_URSNIF.TIBAICA
McAfee-GW-Edition BehavesLike.Win32.Dropper.cc
FireEye Generic.mg.99516eeec930f930
Emsisoft Gen:Variant.Brresmon.126 (B)
Jiangmin Trojan.Foreign.eny
Webroot Trojan.Spy.Ursnif
Avira HEUR/AGEN.1115366
Microsoft Trojan:Win32/Skeeyah.A!bit
Arcabit Trojan.Brresmon.126
AegisLab Trojan.Win32.Foreign.j!c
ZoneAlarm Trojan-Ransom.Win32.Foreign.nzwf
GData Gen:Variant.Brresmon.126
AhnLab-V3 Malware/Win32.Generic.C4004076
McAfee Artemis!99516EEEC930
MAX malware (ai score=100)
Malwarebytes Malware.Heuristic.1003
Panda Trj/CI.A
TrendMicro-HouseCall TSPY_URSNIF.TIBAICA
Rising Ransom.Foreign!8.292 (CLOUD)
Yandex Trojan.Foreign!0SAkYwVM/S4
Ikarus Trojan-Spy.Agent
Fortinet W32/URSNIF.TIBAICA!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Foreign.HgIASOYA

How to remove Brresmon.126 (B)?

  • 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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