What is comlayer.dll?

comlayer.dll is digitally signed by SHADE SANDBOX LLC.

comlayer.dll is usually located in the 'C:\Windows\system32\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about comlayer.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

None of the 70 anti-virus programs at VirusTotal detected the comlayer.dll file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2420,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1603363986.75,
        "ppid": 1268
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1603363986.328125,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2588,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c6bb29ab4ac38a0ab87d6445cd71c979f5f97fdc334ed2df466fb9ed7a441943.bin.dll"
            ]
        },
        "first_seen": 1603363986.921875,
        "ppid": 2420
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "c:\\prj\\shade\\fssdk\\usermode\\comlayer\\objfre_win7_amd64\\amd64\\comlayer.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    }
]

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": 6.213628053665161,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.1737189292907715,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.159416913986206,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.1847169399261475,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.661967039108276,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.059692144393921,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.227780103683472,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 18678,
            "time": 4.19072699546814,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 22870,
            "time": 6.2302961349487305,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "03ac0ea64290fb5bd9fc18e5c2ea5fa555133da10e311edddc364fe1c15198a8",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "744fda2212090b45481f1be3cd63314a97e0356b1eb96129584fe21c1f12e136",
    "irc": [],
    "https_ex": []
}

Screenshots

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

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