What is gammarue.exe?

gammarue.exe is part of Modulate Maligners and developed by BonSoft according to the gammarue.exe version information.

gammarue.exe's description is "Prober"

gammarue.exe is usually located in the 'c:\downloads\' folder.

Some of the anti-virus scanners at VirusTotal detected gammarue.exe.

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 gammarue.exe:

PropertyValue
Product nameModulate Maligners
Company nameBonSoft
File descriptionProber
Internal nameMoscow
Legal copyrightCopyright © 2017
Product version25, 188, 187, 103
File version157, 71, 28, 245

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

Product nameModulate Maligners
Company nameBonSoft
File descriptionProber
Internal nameMoscow
Legal copyrightCopyright © 2017
Product version25, 188, 187, 103
File version157, 71, 28, 245

Digital signatures [?]

gammarue.exe is not signed.

VirusTotal report

54 of the 66 anti-virus programs at VirusTotal detected the gammarue.exe file. That's a 82% detection rate.

ScannerDetection Name
Acronis suspicious
Ad-Aware Gen:Variant.Zusy.188827
AegisLab Trojan.Win32.Waldek.4!c
AhnLab-V3 Trojan/Win32.Gamarue.C1485454
ALYac Gen:Variant.Zusy.188827
Antiy-AVL Trojan/Win32.Waldek
Arcabit Trojan.Zusy.D2E19B
Avast Win32:Malware-gen
AVG Win32:Malware-gen
Avira TR/Crypt.XPACK.bbfc
Baidu Win32.Trojan.Kryptik.acm
BitDefender Gen:Variant.Zusy.188827
CAT-QuickHeal Ransom.TesCrypt.V4
Comodo Malware@#poxp9rj7q1wk
CrowdStrike win/malicious_confidence_100% (W)
Cybereason malicious.4522b0
Cyren W32/Trojan.CRYI-3130
DrWeb Trojan.DownLoader20.41411
eGambit Generic.Malware
Emsisoft Gen:Variant.Zusy.188827 (B)
Endgame malicious (high confidence)
ESET-NOD32 Win32/TrojanDownloader.Wauchos.BD
F-Secure Trojan.TR/Crypt.XPACK.bbfc
FireEye Generic.mg.38abdb74522b0750
Fortinet W32/Waldek.DAJ!tr
GData Win32.Trojan.Agent.HPJ9SO
Ikarus Trojan-Downloader.Win32.Wauchos
Invincea heuristic
Jiangmin Trojan.Waldek.dbf
K7AntiVirus Trojan ( 004e66441 )
K7GW Trojan ( 004e66441 )
Kaspersky Trojan.Win32.Waldek.lcz
MAX malware (ai score=100)
McAfee Generic.ys
McAfee-GW-Edition Generic.ys
Microsoft Worm:Win32/Gamarue
MicroWorld-eScan Gen:Variant.Zusy.188827
NANO-Antivirus Trojan.Win32.Dwn.ebrojx
Paloalto generic.ml
Panda Trj/WLT.B
Qihoo-360 HEUR/QVM07.1.Malware.Gen
Rising Worm.Gamarue!8.13B (CLOUD)
SentinelOne DFI - Malicious PE
Sophos Troj/Ransom-CYD
TACHYON Trojan/W32.Agent.139372.D
Tencent Win32.Trojan.Inject.Auto
Trapmine malicious.high.ml.score
TrendMicro-HouseCall TROJ_GEN.R002C0DCL19
VBA32 BScope.Trojan.Inject
ViRobot Trojan.Win32.R.Agent.139372.A
Yandex Trojan.Waldek!
Zillya Trojan.Waldek.Win32.1310
ZoneAlarm Trojan.Win32.Waldek.lcz
Zoner Trojan.Win32.42219
54 of the 66 anti-virus programs detected the gammarue.exe 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:\\Windows\\system32\\crypt32.dll",
        "\\\\?\\C:\\Windows\\system32\\dnsapi.dll",
        "RedeployMystics",
        "\\\\?\\C:\\Windows\\system32\\winhttp.dll",
        "PertinentRestores",
        "\\\\?\\C:\\Windows\\system32\\ws2_32.dll",
        "\\\\?\\C:\\Windows\\system32\\ole32.dll",
        "LinimentsPlumber",
        "\\\\?\\C:\\Windows\\system32\\shell32.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\42aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3.bin",
        "C:\\"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\software\\policies",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\OLE\\Tracing",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\crypt32"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\42aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3.bin"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\en-US",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\ExtendedLocale\\en-US",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\is_not_vm",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate"
    ],
    "directory_enumerated": [
        "C:\\Windows\\System32\\*"
    ]
}

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\42aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3.bin",
        "process_name": "42aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3.bin",
        "pid": 2740,
        "summary": {
            "dll_loaded": [
                "\\\\?\\C:\\Windows\\system32\\crypt32.dll",
                "\\\\?\\C:\\Windows\\system32\\dnsapi.dll",
                "RedeployMystics",
                "\\\\?\\C:\\Windows\\system32\\winhttp.dll",
                "PertinentRestores",
                "\\\\?\\C:\\Windows\\system32\\ws2_32.dll",
                "\\\\?\\C:\\Windows\\system32\\ole32.dll",
                "LinimentsPlumber",
                "\\\\?\\C:\\Windows\\system32\\shell32.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\42aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3.bin",
                "C:\\"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\software\\policies",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\OLE\\Tracing",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\crypt32"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\42aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3.bin"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\en-US",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\crypt32\\DebugHeapFlags",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\ExtendedLocale\\en-US",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\is_not_vm",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate"
            ],
            "directory_enumerated": [
                "C:\\Windows\\System32\\*"
            ]
        },
        "first_seen": 1589104385.578125,
        "ppid": 1664
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1589104385.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "The executable uses a known packer",
        "severity": 1,
        "marks": [
            {
                "category": "packer",
                "ioc": "Armadillo v1.71",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "peid_packer"
    },
    {
        "markcount": 0,
        "families": [],
        "description": "One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.",
        "severity": 2,
        "marks": [],
        "references": [],
        "name": "dumped_buffer"
    },
    {
        "markcount": 5,
        "families": [],
        "description": "Allocates read-write-execute memory (usually to unpack itself)",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2740,
                        "region_size": 32768,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 4096,
                        "base_address": "0x003a0000"
                    },
                    "time": 1589104385.656125,
                    "tid": 2436,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT"
                    }
                },
                "pid": 2740,
                "type": "call",
                "cid": 0
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2740,
                        "region_size": 1179648,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 8192,
                        "base_address": "0x01ee0000"
                    },
                    "time": 1589104389.687125,
                    "tid": 3016,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_RESERVE"
                    }
                },
                "pid": 2740,
                "type": "call",
                "cid": 20198
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2740,
                        "region_size": 4096,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 1,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 4096,
                        "base_address": "0x01fc0000"
                    },
                    "time": 1589104389.687125,
                    "tid": 3016,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT"
                    }
                },
                "pid": 2740,
                "type": "call",
                "cid": 20200
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2740,
                        "region_size": 16384,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 1,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 4096,
                        "base_address": "0x01fc1000"
                    },
                    "time": 1589104389.687125,
                    "tid": 3016,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT"
                    }
                },
                "pid": 2740,
                "type": "call",
                "cid": 20201
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2740,
                        "region_size": 36864,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 1,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 4096,
                        "base_address": "0x01fc5000"
                    },
                    "time": 1589104389.703125,
                    "tid": 3016,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT"
                    }
                },
                "pid": 2740,
                "type": "call",
                "cid": 20202
            }
        ],
        "references": [],
        "name": "allocates_rwx"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 6.996431876197224,
                "section": {
                    "size_of_data": "0x00016000",
                    "virtual_address": "0x00001000",
                    "entropy": 6.996431876197224,
                    "name": ".text",
                    "virtual_size": "0x00015d5c"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.6666666666666666,
                "type": "generic",
                "description": "Overall entropy of this PE file is high"
            }
        ],
        "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": "One or more of the buffers contains an embedded PE file",
        "severity": 3,
        "marks": [
            {
                "category": "buffer",
                "ioc": "Buffer with sha1: 4a8645df4f230aa4ec0ebb928a9bf619a63de7f6",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "dumped_buffer2"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Expresses interest in specific running processes",
        "severity": 3,
        "marks": [
            {
                "category": "process: potential cuckoo sandbox detection",
                "ioc": "python.exe",
                "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": 3.122598171234131,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 5226,
            "time": 9.168812036514282,
            "dport": 138,
            "sport": 138
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7070,
            "time": 3.0371570587158203,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7398,
            "time": 1.041478157043457,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 7726,
            "time": 3.0823891162872314,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8054,
            "time": 1.5455961227416992,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 8382,
            "time": -0.09631681442260742,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 8710,
            "time": 1.558791160583496,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 28120,
            "time": 1.0631790161132812,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 36504,
            "time": 3.124401092529297,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "898f8768431bc53805659433033e9bc148264e30bbc49d9d3070f49b2825a16c",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "174901435425e9817533dda6777ac99f4beeb63e006c94e97bc5cb597c8f4291",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandboxScreenshot from the sandboxScreenshot from the sandboxScreenshot from the sandbox

gammarue.exe removal instructions

The instructions below shows how to remove gammarue.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the gammarue.exe file for removal, restart your computer and scan it again to verify that gammarue.exe has been successfully removed. Here are the removal instructions in more detail:

  1. Download and install FreeFixer: http://www.freefixer.com/download.html
  2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
    Screenshot of Start Scan button
  3. When the scan is finished, locate gammarue.exe in the scan result and tick the checkbox next to the gammarue.exe file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate gammarue.exe in the scan result.
    Red arrow point on the unwanted file
    c:\downloads\gammarue.exe
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the gammarue.exe file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If gammarue.exe still remains in the scan result, proceed with the next step. If gammarue.exe is gone from the scan result you're done.
  7. If gammarue.exe still remains in the scan result, check its checkbox again in the scan result and click Fix.
  8. Restart your computer.
  9. Start FreeFixer and scan your computer again. Verify that gammarue.exe no longer appear in the scan result.
Please select the option that best describe your thoughts on the removal instructions given above








Free Questionnaires

Hashes [?]

PropertyValue
MD538abdb74522b0750a557e092d7504bcf
SHA25642aaa493f3f12782a30bf7f3b8e4ff57f840b6f3aa5e40d1ef52e36f631de5a3

Error Messages

These are some of the error messages that can appear related to gammarue.exe:

gammarue.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

gammarue.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

Prober has stopped working.

End Program - gammarue.exe. This program is not responding.

gammarue.exe is not a valid Win32 application.

gammarue.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with gammarue.exe?

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



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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