The Win32/GreyBird.NBS is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.
Gridinsoft Anti-Malware
Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
What Win32/GreyBird.NBS virus can do?
- Creates RWX memory
- Starts servers listening on 0.0.0.0:9999
- Reads data out of its own binary image
- Drops a binary and executes it
- The binary likely contains encrypted or compressed data.
- Installs itself for autorun at Windows startup
- Creates a hidden or system file
- Creates a copy of itself
- Anomalous binary characteristics
How to determine Win32/GreyBird.NBS?
File Info:
crc32: E9E8E7E3md5: 677ff5efbf8681f1cf6c3191090519cfname: 677FF5EFBF8681F1CF6C3191090519CF.mlwsha1: 55b92ee5ad54172c9474cca360ea0191d5de5394sha256: 75bfd64ddab27272609497660087ef3593b730be09727e2e1f61c869430a3a9csha512: 8c7aef918be557989c701d5b52294636f3b210b759e3e780be6e7d3326b76c69af9d959663f3b56566589b37d9ca2cf4bb52f7f9653acc66a4942a9096f51324ssdeep: 3072:ddPRzaQAfdAzagzHu7MmV4D4LrKoXgyPtrCLRt2eiNID0FW430b4N3hPu/0:HJzKWagq7Mik4LrVNlrc7t0FfE8NxP/type: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
0: [No Data]
Win32/GreyBird.NBS also known as:
| K7AntiVirus | Trojan ( 7000000f1 ) |
| Elastic | malicious (high confidence) |
| DrWeb | Trojan.Iauh |
| Cynet | Malicious (score: 100) |
| ALYac | Gen:Heur.Mint.Zard.30 |
| Cylance | Unsafe |
| Zillya | Backdoor.Hupigon.Win32.90686 |
| CrowdStrike | win/malicious_confidence_90% (W) |
| K7GW | Trojan ( 7000000f1 ) |
| Cybereason | malicious.fbf868 |
| Cyren | W32/Backdoor.YDCS-4033 |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of Win32/GreyBird.NBS |
| APEX | Malicious |
| Avast | Win32:PePatch-BL [Trj] |
| ClamAV | Win.Trojan.Hupigon-1048 |
| Kaspersky | Backdoor.Win32.Hupigon.aejq |
| BitDefender | Gen:Heur.Mint.Zard.30 |
| NANO-Antivirus | Trojan.Win32.Hupigon.edesrk |
| ViRobot | Backdoor.Win32.GrayBird.178176 |
| MicroWorld-eScan | Gen:Heur.Mint.Zard.30 |
| Ad-Aware | Gen:Heur.Mint.Zard.30 |
| Sophos | ML/PE-A + Troj/GrayBir-AJ |
| Comodo | Backdoor.Win32.GreyBird.LI@2ls0 |
| F-Secure | Trojan.TR/Patched.Ren.Gen |
| BitDefenderTheta | Gen:NN.ZelphiF.34670.kSWbaOZ3dZb |
| VIPRE | BehavesLike.Win32.Malware.ssc (mx-v) |
| TrendMicro | Mal_HPGN-1 |
| McAfee-GW-Edition | BehavesLike.Win32.Downloader.cc |
| FireEye | Generic.mg.677ff5efbf8681f1 |
| Emsisoft | Gen:Heur.Mint.Zard.30 (B) |
| SentinelOne | Static AI – Suspicious PE |
| Jiangmin | Backdoor/Huigezi2005.adx |
| Avira | TR/Patched.Ren.Gen |
| eGambit | Unsafe.AI_Score_89% |
| Kingsoft | Heur.SSC.2708363.1216.(kcloud) |
| Microsoft | Backdoor:Win32/Hupigon |
| Gridinsoft | Trojan.Heur!.032121A1 |
| Arcabit | Trojan.Mint.Zard.30 |
| ZoneAlarm | Backdoor.Win32.Hupigon.aejq |
| GData | Gen:Heur.Mint.Zard.30 |
| TACHYON | Backdoor/W32.Hupigon.178688.J |
| AhnLab-V3 | Trojan/Win32.Hupigon.C41500 |
| McAfee | Generic.dc |
| MAX | malware (ai score=89) |
| VBA32 | TScope.Trojan.Delf |
| Malwarebytes | Malware.AI.3356511380 |
| TrendMicro-HouseCall | Mal_HPGN-1 |
| Rising | Malware.Heuristic!ET#85% (RDMK:cmRtazrtA140dJzZjHZpPMaO8xvd) |
| Yandex | Trojan.GenAsa!85/7sIsLiZw |
| Ikarus | Backdoor.Win32.GrayBird.li |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | W32/Hupigon.OSE!tr.bdr |
| AVG | Win32:PePatch-BL [Trj] |
| Paloalto | generic.ml |
| Qihoo-360 | HEUR/QVM13.0.6367.Malware.Gen |
How to remove Win32/GreyBird.NBS?
- Download and install GridinSoft Anti-Malware.
- Open GridinSoft Anti-Malware and perform a “Standard scan“.
- “Move to quarantine” all items.
- Open “Tools” tab – Press “Reset Browser Settings“.
- Select proper browser and options – Click “Reset”.
- Restart your computer.
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