The Zegost.21 (B) 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.
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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 Zegost.21 (B) virus can do?
- Executable code extraction
- At least one process apparently crashed during execution
- Attempts to connect to a dead IP:Port (3 unique times)
- Creates RWX memory
- A process attempted to delay the analysis task.
- A process created a hidden window
- HTTP traffic contains suspicious features which may be indicative of malware related traffic
- Performs some HTTP requests
- Unconventionial language used in binary resources: Chinese (Simplified)
- The binary likely contains encrypted or compressed data.
- Uses Windows utilities for basic functionality
- Crashed cuckoomon during analysis. Report this error to the Github repo.
- Attempts to repeatedly call a single API many times in order to delay analysis time
- Mimics the file times of a Windows system file
- Installs itself for autorun at Windows startup
- Creates a hidden or system file
- Checks the system manufacturer, likely for anti-virtualization
- Anomalous binary characteristics
- Uses suspicious command line tools or Windows utilities
Related domains:
users.qzone.qq.com |
ocsp.dcocsp.cn |
crl4.digicert.com |
crl3.digicert.com |
How to determine Zegost.21 (B)?
File Info:
crc32: B7E3DBCCmd5: a56a6df07044e1cbf29581ed0793fa94name: A56A6DF07044E1CBF29581ED0793FA94.mlwsha1: 9c7e9a758f8409583c413bfce02be6c0650f8c40sha256: 9607262f20a0344c6188e1b7546e88223f3c67c77179dd6fa7c184180c09dc76sha512: c30ee5eab7f002dfa803481395500ab07c2d9564b5fe6dd663e9e186bfe1eff8bb49ef6fa3f0e15d7e0e5aaa8d5afaf28677e9ed8af18127ec4342b9fadc39ffssdeep: 24576:8jVpMQ1MTQmmfXEQl0wwuFQZfpcYRzvcnjAXF:+Vl1dmm8LwwiOBlXtype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
0: [No Data]
Zegost.21 (B) also known as:
| K7AntiVirus | Trojan ( 003c0f321 ) |
| Elastic | malicious (high confidence) |
| Cynet | Malicious (score: 100) |
| ALYac | Gen:Variant.Zegost.21 |
| Cylance | Unsafe |
| CrowdStrike | win/malicious_confidence_100% (W) |
| K7GW | Trojan ( 003c0f321 ) |
| Cybereason | malicious.07044e |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of Win32/Packed.Enigma.AAA |
| APEX | Malicious |
| Avast | Win32:Trojan-gen |
| ClamAV | Win.Trojan.Bifrose-9837535-0 |
| Kaspersky | Backdoor.Win32.Farfli.bvto |
| BitDefender | Gen:Variant.Zegost.21 |
| MicroWorld-eScan | Gen:Variant.Zegost.21 |
| Ad-Aware | Gen:Variant.Zegost.21 |
| Sophos | Generic ML PUA (PUA) |
| BitDefenderTheta | Gen:NN.ZexaF.34722.XCWaaWg2IYpb |
| TrendMicro | TROJ_GEN.R005C0WF321 |
| McAfee-GW-Edition | BehavesLike.Win32.Autorun.bc |
| FireEye | Generic.mg.a56a6df07044e1cb |
| Emsisoft | Gen:Variant.Zegost.21 (B) |
| SentinelOne | Static AI – Suspicious PE |
| Avira | HEUR/AGEN.1128069 |
| eGambit | Unsafe.AI_Score_100% |
| Microsoft | Trojan:Win32/Wacatac.B!ml |
| GData | Gen:Variant.Zegost.21 |
| AhnLab-V3 | Trojan/Win32.Xema.C1839847 |
| McAfee | Artemis!A56A6DF07044 |
| MAX | malware (ai score=89) |
| Malwarebytes | Malware.AI.2251104497 |
| Panda | Trj/CI.A |
| TrendMicro-HouseCall | TROJ_GEN.R005C0WF321 |
| Rising | Malware.Heuristic!ET#90% (RDMK:cmRtazoYyeoRjIIFcD2+GP5l+/ES) |
| Ikarus | Virus.Win32.Heur |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | W32/PossibleThreat |
| AVG | Win32:Trojan-gen |
How to remove Zegost.21 (B)?
- 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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