The Worm:Win32/Nenebra.A 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 Worm:Win32/Nenebra.A virus can do?
- Creates RWX memory
- Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
- A process created a hidden window
- Drops a binary and executes it
- Unconventionial language used in binary resources: Portuguese (Brazilian)
- The binary likely contains encrypted or compressed data.
- The executable is compressed using UPX
- Uses Windows utilities for basic functionality
- Installs itself for autorun at Windows startup
- Creates a hidden or system file
- Network activity detected but not expressed in API logs
- Creates a copy of itself
- Anomalous binary characteristics
- Attempts to modify Explorer settings to prevent file extensions from being displayed
- Attempts to modify Explorer settings to prevent hidden files from being displayed
- Uses suspicious command line tools or Windows utilities
Related domains:
z.whorecord.xyz |
a.tomx.xyz |
How to determine Worm:Win32/Nenebra.A?
File Info:
crc32: 262A1615md5: 4281806b55ffc5279b0c20fb6a534197name: original_avatar.scrsha1: 872130598fb08fe013841717bcce723e9d8b55a0sha256: 09edd1870b0cdf11411a62a3f79a313212a525534fb5edf00c364de8e5948901sha512: 8229638ee2395d59d0f8328d1691809d3d927100da8ca69af9b8909ba5b346b0e0bc3e7c3975dccd4e54214320df51ea6a3195bf9e354832a2e06fbfa950e630ssdeep: 3072:6XKtBTMhG/dryHOSIXW9rTsZEV1vyyvBAm0w0MoqT/r+fF6Q4ya++LbAK:6XSBT9VUOqVTaU1qw50ldwQktype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressedVersion Info:
0: [No Data]
Worm:Win32/Nenebra.A also known as:
| MicroWorld-eScan | Win32.Worm.Autorun.VX |
| CMC | Trojan.Win32.Cosmu!O |
| CAT-QuickHeal | Worm.Nenebra.AP8 |
| McAfee | Artemis!4281806B55FF |
| Cylance | Unsafe |
| VIPRE | Trojan.Win32.Cosmu.xxs (v) |
| K7AntiVirus | Trojan ( 0016e12c1 ) |
| Alibaba | Worm:Win32/Blocker.c1462679 |
| K7GW | Trojan ( 0016e12c1 ) |
| Cybereason | malicious.b55ffc |
| Arcabit | Win32.Worm.Autorun.VX |
| Baidu | Win32.Worm.Delf.ca |
| Cyren | W32/Cosmu.KVSE-8775 |
| Symantec | W32.SillyFDC |
| ESET-NOD32 | Win32/AutoRun.Delf.HF |
| APEX | Malicious |
| Paloalto | generic.ml |
| ClamAV | Win.Trojan.Cosmu-268 |
| Kaspersky | Trojan-Ransom.Win32.Blocker.iwkz |
| BitDefender | Win32.Worm.Autorun.VX |
| NANO-Antivirus | Trojan.Win32.Cosmu.bavxrk |
| ViRobot | Trojan.Win32.A.Cosmu.212480[UPX] |
| Rising | Malware.FakeFolder@CV!1.6AA9 (CLASSIC) |
| Endgame | malicious (moderate confidence) |
| Emsisoft | Win32.Worm.Autorun.VX (B) |
| Comodo | TrojWare.Win32.Cosmu.KCA@3hhp8i |
| F-Secure | Worm.WORM/Nenebra.A |
| DrWeb | Win32.HLLW.Autoruner.57682 |
| Zillya | Worm.Blocker.Win32.1 |
| TrendMicro | Mal_OtorunO |
| McAfee-GW-Edition | BehavesLike.Win32.Sality.dc |
| Trapmine | suspicious.low.ml.score |
| FireEye | Generic.mg.4281806b55ffc527 |
| Sophos | W32/AutoRun-BZI |
| Ikarus | Worm.Win32.Nenebra |
| F-Prot | W32/Cosmu.C |
| Jiangmin | Trojan/Cosmu.gje |
| Webroot | W32.Trojan.Cosmu.Gen |
| Avira | WORM/Nenebra.A |
| Fortinet | W32/Cosmu.XXS!tr |
| Antiy-AVL | Trojan/Win32.Cosmu |
| Microsoft | Worm:Win32/Nenebra.A |
| SUPERAntiSpyware | Worm.AutoRun/Variant |
| ZoneAlarm | Trojan-Ransom.Win32.Blocker.iwkz |
| AhnLab-V3 | Trojan/Win32.Agent.C65479 |
| VBA32 | TScope.Trojan.Delf |
| ALYac | Win32.Worm.Autorun.VX |
| MAX | malware (ai score=100) |
| Ad-Aware | Win32.Worm.Autorun.VX |
| Malwarebytes | Worm.AutoRun |
| Panda | Generic Malware |
| Zoner | Trojan.Win32.1947 |
| TrendMicro-HouseCall | Mal_OtorunO |
| Yandex | Trojan.Cosmu!gKBhUwtv5Oc |
| SentinelOne | DFI – Suspicious PE |
| GData | Win32.Worm.Autorun.VX |
| BitDefenderTheta | AI:Packer.1085453F1D |
| AVG | Win32:Trojan-gen |
| Avast | Win32:Trojan-gen |
| CrowdStrike | win/malicious_confidence_100% (W) |
| Qihoo-360 | Win32/Worm.00b |
How to remove Worm:Win32/Nenebra.A?
- 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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