What is aswblog.sys?

aswblog.sys is part of Avast and developed by AVAST Software according to the aswblog.sys version information.

aswblog.sys's description is "Logging Driver"

aswblog.sys is digitally signed by AVAST Software s.r.o..

aswblog.sys is usually located in the 'C:\Windows\system32\drivers\' folder.

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

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 64 anti-virus programs at VirusTotal detected the aswblog.sys 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\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.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": 2436,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1607359986.765625,
        "ppid": 2736
    },
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2828,
        "summary": {
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90.bin.dll.manifest"
            ]
        },
        "first_seen": 1607359986.921875,
        "ppid": 2436
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1607359986.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\BUILD\\work\\01\\c0cb082698b95679\\idp\\build\\avgast\\RU_DRIVER-ktJWEA!x64_vs141\\bin\\Release_Unicode_DRIVER_WDK10\\x64\\avgblogdrv.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": "PAGE",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "INIT",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "One or more processes crashed",
        "severity": 1,
        "marks": [
            {
                "call": {
                    "category": "__notification__",
                    "status": 1,
                    "stacktrace": [],
                    "raw": [
                        "stacktrace"
                    ],
                    "api": "__exception__",
                    "return_value": 0,
                    "arguments": {
                        "stacktrace": "e\n9\n0\n8\n9\nc\na\n4\n4\n9\n8\nc\n1\n7\nb\nf\n5\n1\n6\n5\n1\n4\n7\ne\n8\ne\nd\n5\na\n9\n5\n1\n2\nf\n0\nd\nb\nc\n6\ne\n0\n1\nb\n8\n9\n7\n7\nd\n9\n1\n6\n1\nd\n8\n2\n7\nc\nb\nf\n0\n5\nf\n9\n0\n+\n0\nx\n2\nf\n7\na\n \n@\n \n0\nx\n7\nf\ne\nf\n1\n0\nd\n2\nf\n7\na\n\n\nT\np\nA\nl\nl\no\nc\nT\ni\nm\ne\nr\n+\n0\nx\nb\n0\n8\n \nR\nt\nl\nI\nn\ni\nt\ni\na\nl\ni\nz\ne\nC\nr\ni\nt\ni\nc\na\nl\nS\ne\nc\nt\ni\no\nn\nE\nx\n-\n0\nx\n3\n1\n8\n \nn\nt\nd\nl\nl\n+\n0\nx\n3\nb\n0\nd\n8\n \n@\n \n0\nx\n7\n7\n9\ne\nb\n0\nd\n8\n\n\nR\nt\nl\nC\nr\ne\na\nt\ne\nU\nn\ni\nc\no\nd\ne\nS\nt\nr\ni\nn\ng\nF\nr\no\nm\nA\ns\nc\ni\ni\nz\n+\n0\nx\ne\na\n \nL\nd\nr\nL\no\na\nd\nD\nl\nl\n-\n0\nx\n2\n4\n6\n \nn\nt\nd\nl\nl\n+\n0\nx\n2\n7\n8\n4\na\n \n@\n \n0\nx\n7\n7\n9\nd\n7\n8\n4\na\n\n\nL\nd\nr\nL\no\na\nd\nD\nl\nl\n+\n0\nx\n9\ne\n \nR\nt\nl\nO\np\ne\nn\nC\nu\nr\nr\ne\nn\nt\nU\ns\ne\nr\n-\n0\nx\n4\n4\n2\n \nn\nt\nd\nl\nl\n+\n0\nx\n2\n7\nb\n2\ne\n \n@\n \n0\nx\n7\n7\n9\nd\n7\nb\n2\ne\n\n\nN\ne\nw\n_\nn\nt\nd\nl\nl\n_\nL\nd\nr\nL\no\na\nd\nD\nl\nl\n+\n0\nx\na\nf\n \nN\ne\nw\n_\nn\nt\nd\nl\nl\n_\nL\nd\nr\nU\nn\nl\no\na\nd\nD\nl\nl\n-\n0\nx\nd\n9\n \n@\n \n0\nx\n6\n5\na\n9\nf\n8\n3\n1\n\n\nL\no\na\nd\nL\ni\nb\nr\na\nr\ny\nE\nx\nW\n+\n0\nx\n1\n9\nc\n \nF\nr\ne\ne\nS\ni\nd\n-\n0\nx\na\n4\n \nk\ne\nr\nn\ne\nl\nb\na\ns\ne\n+\n0\nx\na\n0\n5\nc\n \n@\n \n0\nx\n7\nf\ne\nf\nd\na\n1\na\n0\n5\nc\n\n\nr\nu\nn\nd\nl\nl\n3\n2\n+\n0\nx\n2\nb\n5\n0\n \n@\n \n0\nx\nf\nf\nb\n8\n2\nb\n5\n0\n\n\nr\nu\nn\nd\nl\nl\n3\n2\n+\n0\nx\n2\ne\n6\na\n \n@\n \n0\nx\nf\nf\nb\n8\n2\ne\n6\na\n\n\nr\nu\nn\nd\nl\nl\n3\n2\n+\n0\nx\n3\nb\n7\na\n \n@\n \n0\nx\nf\nf\nb\n8\n3\nb\n7\na\n\n\nB\na\ns\ne\nT\nh\nr\ne\na\nd\nI\nn\ni\nt\nT\nh\nu\nn\nk\n+\n0\nx\nd\n \nC\nr\ne\na\nt\ne\nT\nh\nr\ne\na\nd\n-\n0\nx\n5\n3\n \nk\ne\nr\nn\ne\nl\n3\n2\n+\n0\nx\n1\n6\n5\n2\nd\n \n@\n \n0\nx\n7\n7\n7\na\n6\n5\n2\nd\n\n\nR\nt\nl\nU\ns\ne\nr\nT\nh\nr\ne\na\nd\nS\nt\na\nr\nt\n+\n0\nx\n2\n1\n \ns\nt\nr\nc\nh\nr\n-\n0\nx\n3\nd\nf\n \nn\nt\nd\nl\nl\n+\n0\nx\n2\nc\n5\n2\n1\n \n@\n \n0\nx\n7\n7\n9\nd\nc\n5\n2\n1",
                        "registers": {
                            "r14": 0,
                            "r9": 2953968,
                            "rcx": 2027056,
                            "rsi": 0,
                            "r10": 0,
                            "rbx": 0,
                            "rdi": 0,
                            "r11": 0,
                            "r8": 0,
                            "rdx": 1,
                            "rbp": 0,
                            "r15": 0,
                            "r12": 0,
                            "rsp": 2030272,
                            "rax": 0,
                            "r13": 0
                        },
                        "exception": {
                            "instruction_r": "0f b7 03 45 33 ff 48 8b 53 08 0f 57 c0 48 d1 e8",
                            "instruction": "movzx eax, word ptr [rbx]",
                            "exception_code": "0xc0000005",
                            "symbol": "e9089ca4498c17bf5165147e8ed5a9512f0dbc6e01b8977d9161d827cbf05f90+0x2f7a",
                            "address": "0x7fef10d2f7a"
                        }
                    },
                    "time": 1607359987.062875,
                    "tid": 2856,
                    "flags": {}
                },
                "pid": 2828,
                "type": "call",
                "cid": 10
            }
        ],
        "references": [],
        "name": "raises_exception"
    }
]

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": 6.22619891166687,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 5990,
            "time": 12.227126121520996,
            "dport": 138,
            "sport": 138
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7834,
            "time": 6.186095952987671,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8162,
            "time": 4.157999038696289,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8490,
            "time": 6.197771072387695,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8818,
            "time": 4.667195081710815,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 9146,
            "time": 3.0567800998687744,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 9474,
            "time": 9.024817943572998,
            "dport": 5355,
            "sport": 55880
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 9794,
            "time": 4.6637349128723145,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 29204,
            "time": 4.175236940383911,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 37588,
            "time": 6.272718906402588,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "93301a07be04894014fca0509a665ad6a36163a25bcf9529d6a7f5b990916032",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "a489c88c32fa383dc4b6d42e3310736985429f26e1ebce6e96480ff15b33b840",
    "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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