What is fctlextend.dll?

fctlextend.dll is part of Advanced SystemCare and developed by IObit according to the fctlextend.dll version information.

fctlextend.dll's description is "file control extend module."

fctlextend.dll is digitally signed by IObit Information Technology.

fctlextend.dll is usually located in the 'C:\Program Files (x86)\IObit\Advanced SystemCare\' folder.

Some of the anti-virus scanners at VirusTotal detected fctlextend.dll.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

VirusTotal report

2 of the 64 anti-virus programs at VirusTotal detected the fctlextend.dll file. That's a 3% detection rate.

Scanner	Detection Name
DrWeb	Program.Unwanted.2520
eGambit	PUP.Optional.IObit

Sandbox Report

The following information was gathered by executing the file inside Cuckoo Sandbox.

Summary

Successfully executed process in sandbox.

Summary

{
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ca8d477fc626d51c61860f4546a252037a436dc3f00c05a0befd137a5e739208.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ca8d477fc626d51c61860f4546a252037a436dc3f00c05a0befd137a5e739208.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ],
    "dll_loaded": [
        "fltLib.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\ca8d477fc626d51c61860f4546a252037a436dc3f00c05a0befd137a5e739208.bin.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 1664,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ca8d477fc626d51c61860f4546a252037a436dc3f00c05a0befd137a5e739208.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ca8d477fc626d51c61860f4546a252037a436dc3f00c05a0befd137a5e739208.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "fltLib.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\ca8d477fc626d51c61860f4546a252037a436dc3f00c05a0befd137a5e739208.bin.dll"
            ]
        },
        "first_seen": 1606258392.765625,
        "ppid": 2456
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1606258392.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "F:\\newsvn\\C++\\ASC12\\filectl -bak\\Release\\fctlextend.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Allocates read-write-execute memory (usually to unpack itself)",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtProtectVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 1664,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "length": 4096,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "base_address": "0x74f89000"
                    },
                    "time": 1606258392.874625,
                    "tid": 2736,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE"
                    }
                },
                "pid": 1664,
                "type": "call",
                "cid": 10
            }
        ],
        "references": [],
        "name": "allocates_rwx"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 662,
            "time": 6.20603609085083,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.169835090637207,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.154799222946167,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.180568218231201,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.6611411571502686,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.0433502197265625,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.674761056900024,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 15512,
            "time": 4.18137001991272,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 19704,
            "time": 6.252619028091431,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "54e8ddc855349529a6380eaab0f786e6c99a3ff70fe154a9be5a6dea0d3cb2a5",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "cdca821551a1531971a451c5677d4a1e9789502673a6bb9eb7b7ae5c4fcecbc7",
    "irc": [],
    "https_ex": []
}

Screenshots

fctlextend.dll removal instructions

The instructions below shows how to remove fctlextend.dll with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the fctlextend.dll file for removal, restart your computer and scan it again to verify that fctlextend.dll has been successfully removed. Here are the removal instructions in more detail:

1. Download and install FreeFixer: http://www.freefixer.com/download.html
2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.

   
3. When the scan is finished, locate fctlextend.dll in the scan result and tick the checkbox next to the fctlextend.dll file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate fctlextend.dll in the scan result.

   

   

   C:\Program Files (x86)\IObit\Advanced SystemCare\fctlextend.dll

   
4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the fctlextend.dll file.

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If fctlextend.dll still remains in the scan result, proceed with the next step. If fctlextend.dll is gone from the scan result you're done.
7. If fctlextend.dll still remains in the scan result, check its checkbox again in the scan result and click Fix.
8. Restart your computer.
9. Start FreeFixer and scan your computer again. Verify that fctlextend.dll no longer appear in the scan result.

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