What is “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.

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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
• Authenticode signature is invalid
• Attempts to identify installed AV products by registry key
• 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: 9F6E714BD0E70D8E0377.mlw
path: /opt/CAPEv2/storage/binaries/2fdb00f266581d71a17cfa37af3babed09c4a429b803618ffb39cc1c9396afa6
crc32: EF4F499B
md5: 9f6e714bd0e70d8e0377ce37a137acd5
sha1: 6dee05e9d33d32ec1a174abf90d895ba3e154d7a
sha256: 2fdb00f266581d71a17cfa37af3babed09c4a429b803618ffb39cc1c9396afa6
sha512: b5de66039b2f499b28fb5bd7d7bc25376c1994d643765c306c518bad64905815462dfbd20071768542336875785f7e2a690e26b0c50234b2f3ff8639dae214de
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJ0:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIb
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1BD4413C2A6D95AE5ECC619771A23DFC41F56FE3169C60A10BA04B16F49F7381AA13323
sha3_384: 73ee8dcff3d47f1e53dea8a344cc0af94bacd64983a019b38171eeaac6bb0e1633adb876adebe1b2b88aac04be48fe7e
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.