Backdoor:Win32/Kirts.A malicious file

The Backdoor:Win32/Kirts.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.

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What Backdoor:Win32/Kirts.A virus can do?

• Executable code extraction
• Injection (inter-process)
• Injection (Process Hollowing)
• Attempts to connect to a dead IP:Port (3 unique times)
• Presents an Authenticode digital signature
• Creates RWX memory
• A process attempted to delay the analysis task.
• At least one IP Address, Domain, or File Name was found in a crypto call
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
• A process created a hidden window
• Drops a binary and executes it
• Performs some HTTP requests
• The binary likely contains encrypted or compressed data.
• Uses Windows utilities for basic functionality
• Queries information on disks, possibly for anti-virtualization
• Detects Sandboxie through the presence of a library
• Detects SunBelt Sandbox through the presence of a library
• Detects the presence of Wine emulator via function name
• Attempts to remove evidence of file being downloaded from the Internet
• Executed a process and injected code into it, probably while unpacking
• Deletes its original binary from disk
• 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 Windows Defender
• Attempts to create or modify system certificates
• Connects to an IRC server, possibly part of a botnet

Related domains:

How to determine Backdoor:Win32/Kirts.A?

File Info:
crc32: B78B2C9B
md5: 906b5f4e8257f31c6ee80671770c5f1f
name: t.exe
sha1: 55de003840b71b7c917da13c5166d76e24e75861
sha256: 57be7db042ed12a36314a2574e13ac384c473f1bb68ebad0d110f9fdfb942642
sha512: 1a6e83c486ff40b6f58accbf225af46f96ac51f8ad82b3a41cbe7204ec0348037c7c1a54fcdc2cc2f63af1933e2e126efa84cbc8968e159b347367ec1b678672
ssdeep: 3072:8DprG5xjCuztWaCcAX7cbWpBTnokvMvQ1b5TZBXT/FWPImu4mvPDauhHcK:8165ftW7cAYbUF5TZBr4P++O
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:
0: [No Data]

Backdoor:Win32/Kirts.A also known as:

How to remove Backdoor:Win32/Kirts.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.