Should I remove “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.

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
• 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
• 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: 933FD0BC6EABEA9EEA40.mlw
path: /opt/CAPEv2/storage/binaries/c7648c49492f93c05ad2ab89fd70004f57abf81c2055e6c1c4e34f23655d1583
crc32: 33DF349F
md5: 933fd0bc6eabea9eea407e7ee227f4d4
sha1: 16356e6a2bb1058dd06303359511e04288f53819
sha256: c7648c49492f93c05ad2ab89fd70004f57abf81c2055e6c1c4e34f23655d1583
sha512: e733b5aa435045171fea37f26ca9195982eddd75f6b8faad7974336399268d882ebf0487f6f5b5dee9f5dd35515ceac2d2a0537cf48721bae37dec6e6a815db0
ssdeep: 3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJp:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIm
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T12D4413C2A6D95AE6ECC619771A23DF841F56FE3169C60A10BA04B16F49F73C19A13323
sha3_384: a5d44d95e7996413f045d16a569b4dc905068ae48c2db1a98032680e07ee51e0557dab859e95e697b0f8662e5a42d160
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.