Worm:Win32/Yuner.A removal tips

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.

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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
• 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 rule detections observed from a process memory dump/dropped files/CAPE

How to determine Worm:Win32/Yuner.A?

File Info:
name: 2C22B8A418C8FAA44534.mlw
path: /opt/CAPEv2/storage/binaries/a7e4ba079338dbb50b7124a2d0d1fada126ec360b6db4e6ed050767eb86d7ccb
crc32: AA99A4DC
md5: 2c22b8a418c8faa44534ee3a76a4a3d8
sha1: a0c2020d7dcaab062ccf9ed4bd647b5eff1f9e52
sha256: a7e4ba079338dbb50b7124a2d0d1fada126ec360b6db4e6ed050767eb86d7ccb
sha512: e548341e024f1fc831ca1281afbb30ee7543b134c1e34afd98872c8eeadc199d2c43e5be94b340a77ffe6a853e2f9ef3e1323ea6870f6bc6cdb4191f84c3341c
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJn:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIG
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T10F4412C2A6D95AE6ECC619771A23DF841F55FE3169C60A10BA04B16F49F73C1AA13323
sha3_384: 779dac3e840965d70f44ca1210240bdf41eb90a8a6db23e263e0491a79b1dd3ddab1bde714ea60ffffe79e7b4b76328d
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.