About “Trojan:Win32/Nefyn.A” infection

The Trojan:Win32/Nefyn.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.

What Trojan:Win32/Nefyn.A virus can do?

• Sample contains Overlay data
• Uses Windows utilities for basic functionality
• Reads data out of its own binary image
• Drops a binary and executes it
• Authenticode signature is invalid
• A ping command was executed with the -n argument possibly to delay analysis
• Attempts to modify proxy settings
• Deletes executed files from disk
• Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Trojan:Win32/Nefyn.A?

File Info:
name: E2D3C8097231D7A04B67.mlwpath: /opt/CAPEv2/storage/binaries/1497a35439b80ec1198dcdd5f5fe86d7e1386c0580f2d386f74dcb56e4f0fcbfcrc32: 608F4D22md5: e2d3c8097231d7a04b67dfa58f4aa930sha1: f64ab62635f002e3dd49d508c6c920259f245c99sha256: 1497a35439b80ec1198dcdd5f5fe86d7e1386c0580f2d386f74dcb56e4f0fcbfsha512: 9d204008ce7475dd7bc96116a3bf03bdd6850a6c4c8aac9fef9316d57ca4585da7dc7e1c09ab3bb1e3d4d0d20100bc5084cff978e1fc6bd263ad8b7b7c9db882ssdeep: 768:L2WlixfXiI8OtVy2vml1AiOMSXaSZXg7sxYdoNK:L25BpgCipSqmw7KKtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14023E0DF2A5C50E2DA6838721839493E571D41628FAF51F65C3BC9AC50F20C5E23CB29sha3_384: 9f614a6267ba2fe6cff1fd8c9e66bf3d1f02dd93f17957b7c5b3602cddfe1bf715e4ad44fcb51b97a4374aaf8a09a856ep_bytes: 558bec6aff6800214000681019400064timestamp: 2012-09-03 16:04:58
Version Info:
0: [No Data]

Trojan:Win32/Nefyn.A also known as:

How to remove Trojan:Win32/Nefyn.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.