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
• 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: B9A29B86988EDA15E588.mlw
path: /opt/CAPEv2/storage/binaries/e17d30fe957d1a2a8fa00624edfd472b09e6808d0f3804fd94221a61e47215df
crc32: E9E30192
md5: b9a29b86988eda15e588114f55a29bd9
sha1: 8aba5d025fd33c88d10573c27849cf28cc431822
sha256: e17d30fe957d1a2a8fa00624edfd472b09e6808d0f3804fd94221a61e47215df
sha512: ec013074a1f26179ff5a22220c30394c61348f4cb48a0e063735a1cb1bbaa1c7bb0465b050e1d85ae573df2a7acbf62d523eca7876d546bbc61b6bfefb586051
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJH:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIi
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1094413C2A6D95AE6ECC619771A23DF841F55FE3169C60A10BA04B16F49F73C1AA13323
sha3_384: 8feb68c92ffecb57da119e90c4b2a6c8d4741d8c04131fb8f0fcdbeee619dec134a595f9a475dc387763f8f4d3e1b116
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.