What is aswhook.dll?

aswhook.dll is part of Avast and developed by AVAST Software according to the aswhook.dll version information.

aswhook.dll's description is "Avast Hook Library"

aswhook.dll is digitally signed by Avast Software s.r.o..

aswhook.dll is usually located in the 'C:\Program Files\Avast Software\Avast\' folder.

Some of the anti-virus scanners at VirusTotal detected aswhook.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

1 of the 69 anti-virus programs at VirusTotal detected the aswhook.dll file. That's a 1% detection rate.

Scanner	Detection Name
ClamAV	Win.Dropper.NetWire-9753268-0

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\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll.manifest"
    ],
    "file_failed": [
        "Global\\AvAswIDS_Ioc2",
        "\\??\\AvAswIDS_Ioc2"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2336,
        "summary": {
            "file_failed": [
                "Global\\AvAswIDS_Ioc2",
                "\\??\\AvAswIDS_Ioc2"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll.manifest"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
            ]
        },
        "first_seen": 1603061585.8125,
        "ppid": 2740
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2740,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\a9136948a5138d786204cf227c65e5d1f4dfa5ba1adf3007296fd5e9a3ebfa5f.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1603061585.65625,
        "ppid": 1664
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1603061585.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\work\\616216c47067779c\\idp\\build\\avgast\\RU_NTDLL-lH-Y2A!x64_vs142\\bin\\Release_Unicode_NTDLL_vs142\\x64\\aswhook.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".detourc",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": ".detourd",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    }
]

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": 546,
            "time": 3.070594072341919,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5326,
            "time": 3.006718873977661,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5654,
            "time": 1.0176868438720703,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5982,
            "time": 3.014145851135254,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6310,
            "time": 1.5191888809204102,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6638,
            "time": -0.10124516487121582,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6966,
            "time": 1.547149896621704,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16764,
            "time": 1.0507938861846924,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25148,
            "time": 3.1167640686035156,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "60947837f0c53d85369144ee2a442544d7d9dfcfc34efd0fa7abceb852c69b8a",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "2c1773357ac67a3bf157760c6ab440900221522641eb1c1fc430936274489a91",
    "irc": [],
    "https_ex": []
}

Screenshots

Other files also named aswhook.dll

aswhook.dll (55 votes)

Malware or legitimate?

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