Worm:Win32/Yuner.A removal

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 detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Yuner.A?

File Info:
name: 266268BE04CB64857408.mlw
path: /opt/CAPEv2/storage/binaries/273448948f89646ff67959369db0fd20f17978b4299f273d776e6658e240cffe
crc32: E8AAA837
md5: 266268be04cb6485740849bdc0998839
sha1: 3972d69a2606cc0df74d82d94ee7eaca40adac3d
sha256: 273448948f89646ff67959369db0fd20f17978b4299f273d776e6658e240cffe
sha512: b0ef2570c794de679c0c58f7fb03aeff4085a6d3d2980c9f854d7f2f68246a0e2744009ca69258195d8915d6284707b8c5261755cc2d4097fbfd4dc120925c42
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJf:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIg
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1914412C2A6D95AE5ECC619771B23DFC41B56FE3169C60A10BA44B16F49F7380AA13323
sha3_384: 232b7365565c0381f2ded4f4c5297e4195cdf740c43115238df9260c3aa18a148ba97438573bd3360aed532f6cb6b1c9
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.