How to remove “Backdoor:Win32/Bifrose.EF”?

The Backdoor:Win32/Bifrose.EF 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 Backdoor:Win32/Bifrose.EF virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Sample contains Overlay data
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• Authenticode signature is invalid
• Behavioural detection: Injection (inter-process)
• Behavioural detection: Injection with CreateRemoteThread in a remote process
• CAPE detected the Xtreme malware family
• Attempts to modify proxy settings
• CAPE detected injection into a browser process, likely for Man-In-Browser (MITB) infostealing
• Anomalous binary characteristics
• Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Backdoor:Win32/Bifrose.EF?

File Info:
name: 4F9218A72FAFFA9714A9.mlw
path: /opt/CAPEv2/storage/binaries/5f50984b688ce77bfea5f90d5caded405cb26cf7338250fd7aa4cd9cefaed4eb
crc32: 5763A4E4
md5: 4f9218a72faffa9714a9bb9634ec7c66
sha1: 6a222914dad7b735d4f7eb770c21c4d21dea7c98
sha256: 5f50984b688ce77bfea5f90d5caded405cb26cf7338250fd7aa4cd9cefaed4eb
sha512: 32407772eef45238cfb99ff1a2807c1894efb518ec01208b6a0f76f67e8baf7a8dfbe99f69e50645fa8ea55ef9cd12195df3656805762a8d7bb0349da4c47d0e
ssdeep: 98304:1CGreS9oYnGxpp7z0mJ2Nqx2vhTQ9wyPkFpiLjwfOC/f+suSLAMWRuPQ9:8K9znGB86b9wvSS/Gsuk619
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1FEF5334A9042D5DAE4076476D70359F3C22D3D82ED872223294EFE8D7E3ACC4AD4A75B
sha3_384: 03ee947c00e72fefd92e6b6cb8d53117c9d79beb17a63012f5ffcb155b2da261421118dc9b525fbab1adaf8fe9b17379
ep_bytes: 68f4104000e8eeffffff000000000000
timestamp: 2007-03-31 23:00:36

Version Info:
0: [No Data]

Backdoor:Win32/Bifrose.EF also known as:

How to remove Backdoor:Win32/Bifrose.EF?

• 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.