Trojan:Win32/Miuref!rfn (file analysis)

The Trojan:Win32/Miuref!rfn 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/Miuref!rfn virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• Enumerates running processes
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Unconventionial language used in binary resources: Greek
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Behavioural detection: Injection (Process Hollowing)
• Executed a process and injected code into it, probably while unpacking
• Deletes its original binary from disk
• Behavioural detection: Injection (inter-process)
• Detects Bochs through the presence of a registry key
• Checks the version of Bios, possibly for anti-virtualization
• Checks the CPU name from registry, possibly for anti-virtualization
• Attempted to write directly to a physical drive
• Accessed credential storage registry keys
• Collects information to fingerprint the system
• Anomalous binary characteristics

How to determine Trojan:Win32/Miuref!rfn?

File Info:
name: E2151A8411627EA2A288.mlwpath: /opt/CAPEv2/storage/binaries/24625e658cff6564bb37fcaf2d10784dc8b1632506c44bcdea943ead12df60bbcrc32: AAF5EC04md5: e2151a8411627ea2a288f2241735d0d0sha1: 0d70f3bd21864d6507d6b486448dbc305d12746dsha256: 24625e658cff6564bb37fcaf2d10784dc8b1632506c44bcdea943ead12df60bbsha512: d978287d8f80579d600d75f870ebd1423b35dc7427452c57945c545308eb7e446cf1a2008feb950b2c2817954ecb8978df359ec3a25c177e3e13d837d7dc0568ssdeep: 3072:VRdWKe7sIWL9HoNVJEUxVxTUpgWCW+46Q0AsJkIIVTmDd33:p/os3oNUonTUpR6Q0JJkIcy533type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T117E3BE42D6D188D3F4F748BA12A33F969A237F124B5F90E70245735E56A27CC8B73829sha3_384: d1623dd2ba5186def157acd0bdb45338573f195c36f97e7ac3de399c8b52f43bc4c02f6addf3c43f7d6c0aafec15e7e8ep_bytes: 558bec6aff6808384000e914160000cctimestamp: 2015-11-02 05:12:51
Version Info:
0: [No Data]

Trojan:Win32/Miuref!rfn also known as:

How to remove Trojan:Win32/Miuref!rfn?

• 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.