What is 534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca?

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca is part of Microsoft Malware Protection and developed by Microsoft Corporation according to the 534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca version information.

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca's description is "Microsoft Antimalware WU Stub"

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca is digitally signed by Microsoft Corporation.

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca is usually located in the 'c:\Windows\SoftwareDistribution\Download\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about 534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca.

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.

Vendor and version information [?]

The following is the available information on 534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca:

PropertyValue
Product nameMicrosoft Malware Protection
Company nameMicrosoft Corporation
File descriptionMicrosoft Antimalware WU Stub
Internal nameAM_Delta_Patch_1.291.2468.0.exe
Original filenameAM_Delta_Patch_1.291.2468.0.exe
Legal copyright© Microsoft Corporation. All rights reserved.
Product version1.291.2470.0
File version1.291.2470.0

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameMicrosoft Malware Protection
Company nameMicrosoft Corporation
File descriptionMicrosoft Antimalware WU Stub
Internal nameAM_Delta_Patch_1.291.2468.0.exe
Original filenameAM_Delta_Patch_1.291.2468.0.exe
Legal copyright© Microsoft Corporation. All rights..
Product version1.291.2470.0
File version1.291.2470.0

Digital signatures [?]

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca has a valid digital signature.

PropertyValue
Signer nameMicrosoft Corporation
Certificate issuer nameMicrosoft Code Signing PCA
Certificate serial number33000001b1ddedba54e965b85f0001000001b1

VirusTotal report

None of the 66 anti-virus programs at VirusTotal detected the 534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca file.

None of the 66 anti-virus programs detected the 534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_opened": [
        "C:\\Windows\\System32\\MpSigStub.exe"
    ],
    "file_exists": [
        "C:\\Windows\\System32\\advapi32.dll",
        "C:\\Windows\\System32\\version.dll"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Defender\\Features",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub"
    ],
    "regkey_written": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub\\LastStartTime",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub\\LastExitCode"
    ],
    "dll_loaded": [
        "kernel32",
        "C:\\Windows\\system32\\advapi32.dll",
        "C:\\Windows\\system32\\version.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1576281186.328125,
        "ppid": 376
    },
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\db93ee5ae8a01efd41641ee83146e32e038a7e1bbec9a0d1d4ca505f5f0c975d.bin",
        "process_name": "db93ee5ae8a01efd41641ee83146e32e038a7e1bbec9a0d1d4ca505f5f0c975d.bin",
        "pid": 2436,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\MpSigStub.exe"
            ],
            "file_exists": [
                "C:\\Windows\\System32\\advapi32.dll",
                "C:\\Windows\\System32\\version.dll"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Defender\\Features",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub"
            ],
            "regkey_written": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub\\LastStartTime",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MpSigStub\\LastExitCode"
            ],
            "dll_loaded": [
                "kernel32",
                "C:\\Windows\\system32\\advapi32.dll",
                "C:\\Windows\\system32\\version.dll"
            ]
        },
        "first_seen": 1576281186.59375,
        "ppid": 3040
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "MpWUStub.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "BINARY",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "CABINET",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Searches running processes potentially to identify processes for sandbox evasion, code injection or memory dumping",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "Process32NextW",
                    "return_value": 1,
                    "arguments": {
                        "process_name": "mobsync.exe",
                        "snapshot_handle": "0x0000000000000040",
                        "process_identifier": 552
                    },
                    "time": 1576281186.73475,
                    "tid": 2124,
                    "flags": {}
                },
                "pid": 2436,
                "type": "call",
                "cid": 80
            }
        ],
        "references": [],
        "name": "injection_process_search"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 7.85855074178967,
                "section": {
                    "size_of_data": "0x00007200",
                    "virtual_address": "0x00041000",
                    "entropy": 7.85855074178967,
                    "name": ".rsrc",
                    "virtual_size": "0x00007158"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            }
        ],
        "references": [
            "http:\/\/www.forensickb.com\/2013\/03\/file-entropy-explained.html",
            "http:\/\/virii.es\/U\/Using%20Entropy%20Analysis%20to%20Find%20Encrypted%20and%20Packed%20Malware.pdf"
        ],
        "name": "packer_entropy"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Expresses interest in specific running processes",
        "severity": 2,
        "marks": [
            {
                "category": "process",
                "ioc": "db93ee5ae8a01efd41641ee83146e32e038a7e1bbec9a0d1d4ca505f5f0c975d.bin",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "process_interest"
    }
]

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": 3.0783560276031494,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2018,
            "time": 3.039475917816162,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2346,
            "time": 1.032210111618042,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 2674,
            "time": 3.0514791011810303,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3002,
            "time": 1.5342941284179688,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3330,
            "time": -0.09429597854614258,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 3658,
            "time": 1.5628890991210938,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6986,
            "time": 1.0666420459747314,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 11178,
            "time": 3.1412110328674316,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "7a9b6b222fec6c386c844b63561a0c6166fd7b129bc69f58db2499c3ad9f2cb5",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "98e2eab3cc0f69ace0ef8ef6d84cfebc02a637677a9110502a375e083341fa9b",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

Filename variants

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca may also use other filenames. The most common variants are listed below:

Folder name variants

534c0a3d0662c0a1ada5aef8edc060fa0d8c43ca may also be located in other folders than c:\Windows\SoftwareDistribution\Download\. The most common variants are listed below:

Hashes [?]

PropertyValue
MD53d822e9ed4c3937325d9b6839cf010ba
SHA256db93ee5ae8a01efd41641ee83146e32e038a7e1bbec9a0d1d4ca505f5f0c975d

What will you do with the file?

To help other users, please let us know what you will do with the file:



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.

Please select the option that best describe your thoughts on the information provided on this web page


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Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

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