Worm:Win32/Yuner.A removal instruction

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
• Uses Windows utilities for basic functionality
• 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 detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Yuner.A?

File Info:
name: 69EBA4F81C2C8A81AA1C.mlw
path: /opt/CAPEv2/storage/binaries/27f8054681ab1a38909ee42123dd320c20315861109b4d2caf0a20c6bac116dd
crc32: C7EE4A32
md5: 69eba4f81c2c8a81aa1c61187b480e5a
sha1: 4d84d8c115613805f23482d2c17960fd5c2e5e85
sha256: 27f8054681ab1a38909ee42123dd320c20315861109b4d2caf0a20c6bac116dd
sha512: 9a5b73f8e9ac40eaa8dd4579220b16f187da2b96289b14bfbf577f55e1242e47453a498e7334154d1253fc46e2207ff82a46d555049f4ddb41a152e0ea038607
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJf:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIE
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T19D4413C2A6D95AF6ECC619771A23DF841F55FE3169C60A10BA04B16F49F73C1AA13323
sha3_384: aeb801c7acf1b137bcf916b2a0248b1d09510f086246501ce8c02b233c826395126002bb7534934e0daa4b3fca739903
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.