What is “Heur.Crifi.4”?

The Heur.Crifi.4 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 Heur.Crifi.4 virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• 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
• Anomalous file deletion behavior detected (10+)
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• At least one IP Address, Domain, or File Name was found in a crypto call
• Enumerates running processes
• Expresses interest in specific running processes
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Behavioural detection: Injection (Process Hollowing)
• Executed a process and injected code into it, probably while unpacking
• Code injection with CreateRemoteThread in a remote process
• Behavioural detection: Injection (inter-process)
• Behavioural detection: Injection with CreateRemoteThread in a remote process
• Tries to unhook or modify Windows functions monitored by Cuckoo
• Steals private information from local Internet browsers
• Collects and encrypts information about the computer likely to send to C2 server
• Installs itself for autorun at Windows startup
• Creates a hidden or system file
• Attempts to modify browser security settings
• Harvests credentials from local FTP client softwares
• Collects information to fingerprint the system
• Anomalous binary characteristics
• Clears web history

How to determine Heur.Crifi.4?

File Info:
name: 30F9CE2FE45423767B03.mlw
path: /opt/CAPEv2/storage/binaries/b43f7b80917c08c59d430c001b348fc0a163c58039345b36a4cd62eefcb0c984
crc32: 2C79B3B0
md5: 30f9ce2fe45423767b03b898708e8760
sha1: 650797928375a48601f78059f813f0edb0b29f7d
sha256: b43f7b80917c08c59d430c001b348fc0a163c58039345b36a4cd62eefcb0c984
sha512: 62207aa2b3fa1b749b88a743fad11a725f13a6de3ff69e2bda30edcf1956662197bc8a0a9254d8586fceb1277a121039b801947054261cd67e351c73c0c533bb
ssdeep: 6144:Hjbei2QUiBWQbBwXrQOg+/uvmkyQSedoFlHV:Hu6fJbBwb6vFcedK
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T19B54CE12DAD0857FE0E537B044FA17A216387CF82A76D36F7648759BA8223C4953633B
sha3_384: c72bb7d858ac201e889738547477d7f4d1a1bbd0fe865d0fd30a192037beaea6e7e3c64b24ba6de06bb48838783f324f
ep_bytes: e80a000000e97affffffcccccccccc8b
timestamp: 2004-08-04 06:01:37

Version Info:
CompanyName: Microsoft Corporation
FileDescription: Win32 Cabinet Self-Extractor                                           
FileVersion: 6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)
InternalName: Wextract                
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFilename: WEXTRACT.EXE            
ProductName: Microsoft® Windows® Operating System
ProductVersion: 6.00.2900.2180
Translation: 0x0409 0x04b0

Heur.Crifi.4 also known as:

How to remove Heur.Crifi.4?

• 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.