Backdoor

How to remove “Backdoor:Win32/Zegost.DE!bit”?

Malware Removal

The Backdoor:Win32/Zegost.DE!bit 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

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.
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What Backdoor:Win32/Zegost.DE!bit virus can do?

  • At least one process apparently crashed during execution
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Detected script timer window indicative of sleep style evasion
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • 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.
  • The executable is compressed using UPX
  • A scripting utility was executed
  • 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
  • Creates a copy of itself

Related domains:

users.qzone.qq.com
ocsp.dcocsp.cn
crl4.digicert.com
crl3.digicert.com

How to determine Backdoor:Win32/Zegost.DE!bit?


File Info:

crc32: 514B98F8
md5: b0620c3bd14ab1a721e57922eee7cbcd
name: B0620C3BD14AB1A721E57922EEE7CBCD.mlw
sha1: e43ff64125d9312abd1be9f6213c7cb4289e9e79
sha256: 8e82dcf6740a89544feee79ca164fafd890373078241a05c0d01cf689b5b6e22
sha512: 056204200f3ae4b24ab591ced09d461c908dd9769144fcfdbc5785ad5b8fa1598d1301e4f9d52a80e12a57c862c2f212411856c7e3e1aa18bb2677f026505086
ssdeep: 1536:I+8Y8vyOCn4ONaycgcLWujgFO/qIzVI/:kDZC4qaM5UVI
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Backdoor:Win32/Zegost.DE!bit also known as:

BkavW32.AIDetectVM.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanGeneric.Mulinex.18C72167
FireEyeGeneric.mg.b0620c3bd14ab1a7
McAfeeArtemis!B0620C3BD14A
CylanceUnsafe
SangforMalware
BitDefenderGeneric.Mulinex.18C72167
Cybereasonmalicious.bd14ab
SymantecBackdoor.Zegost
APEXMalicious
AvastWin32:Downloader-TZT [Trj]
ClamAVWin.Trojan.Farfli-9817329-0
KasperskyBackdoor.Win32.Farfli.anyf
AlibabaBackdoor:Win32/Farfli.9c2d8b41
NANO-AntivirusTrojan.Win32.Farfli.eljygf
RisingBackdoor.Farfli!8.B4 (TFE:5:tpCRkSRiJfN)
Ad-AwareGeneric.Mulinex.18C72167
EmsisoftGeneric.Mulinex.18C72167 (B)
F-SecureHeuristic.HEUR/AGEN.1110694
DrWebTrojan.DownLoader23.53023
TrendMicroBKDR_ZEGOST.SM40
McAfee-GW-EditionGenericRXAY-MA!E3918549E96A
SophosMal/Behav-294
SentinelOneStatic AI – Malicious PE
JiangminBackdoor.Farfli.bgx
AviraHEUR/AGEN.1110694
Antiy-AVLTrojan[Backdoor]/Win32.Farfli
MicrosoftBackdoor:Win32/Zegost.DE!bit
ZoneAlarmBackdoor.Win32.Farfli.anyf
GDataWin32.Backdoor.Farfli.H
CynetMalicious (score: 100)
BitDefenderThetaGen:NN.ZexaF.34804.dmGfaSMhYakj
ALYacGeneric.Mulinex.18C72167
MAXmalware (ai score=83)
VBA32BScope.Backdoor.Farfli
MalwarebytesMalware.AI.1719479668
ESET-NOD32a variant of Win32/Farfli.BXP
TrendMicro-HouseCallBKDR_ZEGOST.SM40
TencentWin32.Backdoor.Farfli.Pcry
YandexTrojan.GenAsa!G24j6QQ9+B0
IkarusTrojan.Win32.Farfli
AVGWin32:Downloader-TZT [Trj]
CrowdStrikewin/malicious_confidence_60% (D)
Qihoo-360Win32/Trojan.Downloader.341

How to remove Backdoor:Win32/Zegost.DE!bit?

Backdoor:Win32/Zegost.DE!bit removal tool
  • 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.

About the author

Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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