Win32:Brontok-BW [Wrm] removal instruction

The Win32:Brontok-BW [Wrm] 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:Brontok-BW [Wrm] virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Dynamic (imported) function loading detected
• Expresses interest in specific running processes
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• Authenticode signature is invalid
• Installs itself for autorun at Windows startup
• Attempts to disable or modify Explorer Folder Options
• Attempts to disable System Restore
• Attempts to modify Explorer settings to prevent file extensions from being displayed
• Attempts to modify Explorer settings to prevent hidden files from being displayed

How to determine Win32:Brontok-BW [Wrm]?

File Info:
name: 994CB80F723C6B21B77D.mlwpath: /opt/CAPEv2/storage/binaries/0bdb2e5d4772d35e06912f48fd5d02b0c9dc6f0eda0d48feb37073629a9609efcrc32: 809FCB40md5: 994cb80f723c6b21b77d7ccaad9c24f7sha1: 90f38eef03373235a4be3d09f739e2ad1b54be87sha256: 0bdb2e5d4772d35e06912f48fd5d02b0c9dc6f0eda0d48feb37073629a9609efsha512: 162c04d472bd1926d7b016c0bcc8629865f63286fe948d3e6488730fcd003fefa20f1e65c8d6f7d7eb0ff921071c31569d2186b1d4e241fe77264b6b1002002bssdeep: 6144:mjBjEjLjFjEjQjFjEjTjFjEjujFjEj8jFjEjsjFjEj+jFjEjynjHjBjEjLjFjEjd:WL33C4Ttype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1BD669D037B17E00DF624C9395A0645AD63857EA18E037E6BA2253E7B3E371C62E57732sha3_384: 81bb5afab851b1fd79ad8622e7a48da3108a18b94cc35374d66a5ff20f4d3ea563e8b48c15734d49723c3b0b2df5babdep_bytes: 60be007041008dbe00a0feff5783cdfftimestamp: 2006-07-15 11:26:47
Version Info:
Translation: 0x0409 0x04b0ProductName: 4k51k4FileVersion: 1.12.1985ProductVersion: 1.12.1985InternalName: 4K51K4OriginalFilename: 4K51K4.exe

Win32:Brontok-BW [Wrm] also known as:

How to remove Win32:Brontok-BW [Wrm]?

• 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.