Worm:Win32/Yuner.A removal guide

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
• 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
• 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: 05AF71EF9FD63CACC717.mlw
path: /opt/CAPEv2/storage/binaries/7b932067179dcfa15fe863c059a8489594f61d34b2345b7c75a235226a34ba91
crc32: F9D1B6A8
md5: 05af71ef9fd63cacc7173d00c2e74662
sha1: 884627384c528005b83a448e65fda7558113d3cd
sha256: 7b932067179dcfa15fe863c059a8489594f61d34b2345b7c75a235226a34ba91
sha512: 088b1f9d9f9e68558f363725a8a708a3920f35f7d477854fc8e3259af2f33fa0f8d8bf3f194edc3c9e94e899fedb861fa118c4feec586eb4e63173f3543465c4
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJy:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIH
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1624413C2A6D95BE6ECC619771A23DF841F56FE3169C60910BA04B16F49F73C1AA13323
sha3_384: 557ac72099b72116dd0297bed898fa5865d37d0ddfb37dc7106f1d085e573720a17ae44081b58501f0c8ba319f7f0aac
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.