What is gemma.sys?

gemma.sys is part of BitDefender® AntiVirus and developed by BitDefender S.R.L. Bucharest, ROMANIA according to the gemma.sys version information.

gemma.sys's description is "BitDefender Generic Exploit Mitigation for Mainstream Applications Filesystem Minifilter"

gemma.sys is digitally signed by Bitdefender SRL.

gemma.sys is usually located in the 'C:\WINDOWS\system32\drivers\' folder.

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

Vendor and version information [?]

The following is the available information on gemma.sys:

PropertyValue
Product nameBitDefender® AntiVirus
Company nameBitDefender S.R.L. Bucharest, ROMANIA
File descriptionBitDefender Generic Exploit Mitigation for Mainstream Applications Filesystem Minifilter
Internal nameGEMMA.SYS
Original filenameGEMMA.SYS
Legal copyright© BitDefender S.R.L. All rights reserved.
Product version13
File version1.18.88.0 0x437b771

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

Product nameBitDefender® AntiVirus
Company nameBitDefender S.R.L. Bucharest, ROMANIA
File descriptionBitDefender Generic Exploit Mitigati..
Internal nameGEMMA.SYS
Original filenameGEMMA.SYS
Legal copyright© BitDefender S.R.L. All rights res..
Product version13
File version1.18.88.0 0x437b771

Digital signatures [?]

gemma.sys has a valid digital signature.

PropertyValue
Signer nameBitdefender SRL
Certificate issuer nameDigiCert Assured ID Code Signing CA-1
Certificate serial number0d539ce22c8990bd091f22aea32a5123

VirusTotal report

None of the 71 anti-virus programs at VirusTotal detected the gemma.sys file.

None of the 71 anti-virus programs detected the gemma.sys file.

Sandbox Report

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

Summary

ERROR: Failed to execute process.

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1577235185.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "D:\\Bamboo\\home\\xml-data\\build-dir\\GEMMA_DEFAULT_SOURCES\\master\\bin\\x64\\Release\\gemma\\gemma.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 3,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".code",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "PAGE",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "INIT",
                "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": "224.0.0.252",
            "offset": 710,
            "time": 1.039320945739746,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 1038,
            "time": -0.08828210830688477,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 1366,
            "time": 1.0726020336151123,
            "dport": 3702,
            "sport": 49152
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "e8d36b8784fc820c7677bb1e326cb22d5e2cc734039929201f51be42ef66da34",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "4a2a4f12396d81987cccfea4ba245f0b2bd28524cd3c0f456d3953c71552860f",
    "irc": [],
    "https_ex": []
}

Other files also named gemma.sys

gemma.sys (2 votes)

Hashes [?]

PropertyValue
MD5b33b92241c4a113998d018bae7c6b2fd
SHA256b29cb41f93fee1b0202d72ea2fb3df59d0e222a9661d73cb7c74fc0f69c34704

What will you do with gemma.sys?

To help other users, please let us know what you will do with gemma.sys:



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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