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
• 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: 790CA6F08F073B868508.mlw
path: /opt/CAPEv2/storage/binaries/0172b1edb99a29b913f7feb308efbed0c3c2facddbbec231dc9f53b7abbd0f5c
crc32: 496BCEA8
md5: 790ca6f08f073b86850874cd4297a604
sha1: 9a448d05c3874cdb9427f5c34de018769044d2ce
sha256: 0172b1edb99a29b913f7feb308efbed0c3c2facddbbec231dc9f53b7abbd0f5c
sha512: 605b3f127f77066098bc07d76c4bf78b4d9f8eb53c9cdb61aa358fe5b7238aa83c5111abb97ab4d168cedae12a6165e4f5b424593fce9a9219646b68313fd060
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJc:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIB
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11A4412C2A6D95AE5ECC619771A23DFC41F56FE3169C60A10BA04B16F49F7381AA13323
sha3_384: 75ad1136f377487a1f81326de75a4c93c4ed23642ff4dd0f8c85501c2ba346d11003f15529121075a79e5381c0351f07
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.