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
• 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
• Touches a file containing cookies, possibly for information gathering
• Yara detections observed in process dumps, payloads or dropped files

How to determine Worm:Win32/Yuner.A?

File Info:
name: 16CBDACBFFE5A2B8020F.mlw
path: /opt/CAPEv2/storage/binaries/955c74e9aef12c7934ce06de046723fe7902b2f1b189fd90fcbabb01d6c79e97
crc32: D93E41E3
md5: 16cbdacbffe5a2b8020f8cea3c347a06
sha1: 9acaa90e226728ddfc218714a6077cf1d13ea7d3
sha256: 955c74e9aef12c7934ce06de046723fe7902b2f1b189fd90fcbabb01d6c79e97
sha512: 13d058984386989330b3be7198044715242cf3291ef43c007d2bef71e78a664234bdaee02b6b70a31b7f6afcc8c666de64465d40bad95bd852051e2b5e48db89
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJm:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIR
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1BD4413C2A6D95BE6ECC619771A23DF841F56FE3159C60A10BA04B16F49F7380AA13323
sha3_384: 5051ccc0a017a92a374b997af629f8d8e1bf32ba6aa30a3821fb22576b6b2719055c7a61c97522792a8657c11a2fa3c4
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.