Worm:Win32/Esfury malicious file

The Worm:Win32/Esfury 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/Esfury virus can do?

• Executable code extraction
• Injection (inter-process)
• Injection (Process Hollowing)
• Presents an Authenticode digital signature
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• A process attempted to delay the analysis task.
• Attempts to connect to a dead IP:Port (22 unique times)
• Reads data out of its own binary image
• Attempts to modify Internet Explorer’s start page
• HTTP traffic contains suspicious features which may be indicative of malware related traffic
• Performs some HTTP requests
• Unconventionial language used in binary resources: Spanish (Peru)
• The binary likely contains encrypted or compressed data.
• Uses Windows utilities for basic functionality
• Executed a process and injected code into it, probably while unpacking
• Steals private information from local Internet browsers
• A system process is generating network traffic likely as a result of process injection
• Network activity contains more than one unique useragent.
• Installs itself for autorun at Windows startup
• Creates a hidden or system file
• Attempts to modify proxy settings
• Operates on local firewall’s policies and settings
• Creates a copy of itself
• Attempts to disable System Restore
• Attempts to disable UAC
• The sample wrote data to the system hosts file.
• Attempts to modify or disable Security Center warnings
• Attempts to modify UAC prompt behavior
• Anomalous binary characteristics
• Attempts to modify Explorer settings to prevent file extensions from being displayed
• Attempts to modify Explorer settings to prevent hidden files from being displayed

Related domains:

How to determine Worm:Win32/Esfury?

File Info:
crc32: 1F6B70E0
md5: a8e7a9ab838e2cdd2d7a2f4dd49af190
name: A8E7A9AB838E2CDD2D7A2F4DD49AF190.mlw
sha1: 8058431ccd946d4586923c5976bc4e13c1bf2f19
sha256: 4de9d63fb103eb2eae99d9428c35597ed20f8e354cec8c899738a8a5c2d9391f
sha512: 89067d81e4a080200c1879a2db59c2f06cbef898a36ebec84fe1485f17a10f09147ccc6d76de8d1cdd43c70584c4e78f052b6660e21e4bbc05c3347016ab071c
ssdeep: 1536:JNhENNo2oa5pHwAVvu0IysOPv3YdI3EpCK+V5iR/yKoDn66XujshkGXE7rFKh:JgN5ogyJ0XgdsEIKlyKo26Jkj7rF
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
0: [No Data]

Worm:Win32/Esfury also known as:

How to remove Worm:Win32/Esfury?

• 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.