Should I remove “Worm:Win32/Yuner.A”?

The Worm:Win32/Yuner.A 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.

Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.

DOWNLOAD NOW

6-day free trial available.

What Worm:Win32/Yuner.A virus can do?

• A file was accessed within the Public folder.
• Sample contains Overlay data
• Reads data out of its own binary image
• Drops a binary and executes it
• 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
• Creates an autorun.inf file
• Authenticode signature is invalid
• Attempts to identify installed AV products by registry key
• Checks for the presence of known devices from debuggers and forensic tools
• Checks for the presence of known devices from debuggers and forensic tools
• Detects the presence of Windows Defender AV emulator via files
• Attempts to disable System Restore
• Attempts to disable Windows File Protection aka System File Checker.
• Touches a file containing cookies, possibly for information gathering
• Attempts to modify or disable Security Center warnings
• Attempts to modify Explorer settings to prevent file extensions from being displayed
• Attempts to modify Explorer settings to prevent hidden files from being displayed
• Yara detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Yuner.A?

File Info:
name: DE589F1D67A0A935014B.mlw
path: /opt/CAPEv2/storage/binaries/0567e72e818eea81785abac0fece04b7681c171c82118d40e6a598b49973d38d
crc32: 8751DA61
md5: de589f1d67a0a935014b267d95d15a60
sha1: 959f0c32c930d71b37c701adfd7e81d8e7fb44db
sha256: 0567e72e818eea81785abac0fece04b7681c171c82118d40e6a598b49973d38d
sha512: 5919f9f1da7b9b4993483cfeb1e1558c62ba6683891bb6113a34a27582335f0ecd5ad783e829aed103f87b10788a476a346ab5d1ddc95eb26dd5ceb2073dbf77
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJD:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIS
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T19F4412C2A6D95AE5ECC619771A23DFC41B56FE3169C60A10BA04B16F49F7380AA13323
sha3_384: 94e5399e2701ab4422e8ac95948a2a8e6cbc5f7419568cd512f6c9d5130f17e4d5850e2ad140859fe560215687ae4d5a
ep_bytes: 60be002046008dbe00f0f9ff57eb0b90
timestamp: 2007-09-10 14:57:50

Version Info:
FileDescription: 
Virus.Name.: ., ., ., .
Nuyer.........: ...... .. ...... : ., ., ., .
Translation: 0x0809 0x04b0

Worm:Win32/Yuner.A also known as:

How to remove Worm:Win32/Yuner.A?

• 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.