Symmi.746 removal instruction

The Symmi.746 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 Symmi.746 virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Mimics the system’s user agent string for its own requests
• Dynamic (imported) function loading detected
• At least one IP Address, Domain, or File Name was found in a crypto call
• Performs HTTP requests potentially not found in PCAP.
• Starts servers listening on 0.0.0.0:26897, :0, 127.0.0.1:36361
• Enumerates running processes
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• 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
• 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
• Deletes its original binary from disk
• Behavioural detection: Injection (inter-process)
• Behavioural detection: Injection with CreateRemoteThread in a remote process
• Tries to unhook or modify Windows functions monitored by Cuckoo
• Collects and encrypts information about the computer likely to send to C2 server
• Installs itself for autorun at Windows startup
• Attempts to modify proxy settings
• Collects information to fingerprint the system
• Anomalous binary characteristics

How to determine Symmi.746?

File Info:
name: 401C794584F7CECD6799.mlw
path: /opt/CAPEv2/storage/binaries/8c8262ad124d825d1dcee4b66ef7e71aee549c11d4f85a877e3949d1c5c420d1
crc32: 3752AD8F
md5: 401c794584f7cecd6799012c5a6db743
sha1: 71aec8bc99838055632b5a1624b6bdc6be368ca2
sha256: 8c8262ad124d825d1dcee4b66ef7e71aee549c11d4f85a877e3949d1c5c420d1
sha512: beade74c7060e1277a965bf22dd091e526e4931fedf7dde268cea2360979de12b1d01426edb000f33bac37eaa9ad4adf8b540a15c0a1cc21add7ed41c8efca4d
ssdeep: 6144:wceULDDYqxtoT7BjZK2Fp5/fqIqwU9kYgnXC0asYMaqSf:wcesD5ET7942R/f5Ygy0aPqSf
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1284412EF72D379D3EF6894F35234E81AB388A614EE1A0DC4153AA0134AE96644F05FD7
sha3_384: 69cdedf6aa110db276fc33723780e89fa96be236736559419a927d462140a93fbf7aab3864910785b12e4cd8827fbaaf
ep_bytes: 60be006043008dbe00b0fcffc7879c90
timestamp: 1992-06-19 22:22:17

Version Info:
0: [No Data]

Symmi.746 also known as:

How to remove Symmi.746?

• 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.