Trojan

How to remove “Trojan-Downloader.Win32.Deyma.boc”?

Malware Removal

The Trojan-Downloader.Win32.Deyma.boc 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.
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What Trojan-Downloader.Win32.Deyma.boc virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (4 unique times)
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • 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
  • Uses Windows utilities for basic functionality
  • A process attempted to delay the analysis task by a long amount of time.
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Attempts to identify installed AV products by installation directory
  • Creates a copy of itself
  • Harvests credentials from local FTP client softwares
  • Harvests information related to installed instant messenger clients
  • Harvests information related to installed mail clients
  • Collects information to fingerprint the system

Related domains:

redirector.gvt1.com
r4—sn-4g5e6nl6.gvt1.com

How to determine Trojan-Downloader.Win32.Deyma.boc?


File Info:

crc32: 694D3CA6
md5: f7592a0c4e90ae30abdde612c8389aa3
name: upload_file
sha1: dc8c99fe7b2e94527e569b63f10392ac5cac6c96
sha256: 4e48224802ab056465fbed3aee1ddcf48b5c77392a8f0b12d5b5b4c648e18515
sha512: 385331e65f159e1e83a2f297376c913ae431c7c0db6b613a6f2880b0209b56e4d4fa0de069d46338629f0f13b657aca8d02a4b30f689d6d3c82061ff28f77a91
ssdeep: 3072:BjY9xJ5k3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3v3veM:y9DeCBa1kf0T
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: wmlaunch.exe
FileVersion: 11.0.5721.5262 (WMP_11.090130-1421)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 11.0.5721.5262
FileDescription: Windows Media Player Launcher
OriginalFilename: wmlaunch.exe
Translation: 0x0409 0x04b0

Trojan-Downloader.Win32.Deyma.boc also known as:

BkavW32.AIDetectVM.malware2
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader34.9692
MicroWorld-eScanTrojan.GenericKD.43559389
FireEyeGeneric.mg.f7592a0c4e90ae30
Qihoo-360Generic/HEUR/QVM20.1.E3AC.Malware.Gen
ALYacTrojan.GenericKD.43559389
CylanceUnsafe
AegisLabTrojan.Win32.Deyma.a!c
SangforMalware
K7AntiVirusTrojan ( 005652be1 )
BitDefenderTrojan.GenericKD.43559389
K7GWTrojan ( 005652be1 )
Cybereasonmalicious.e7b2e9
Invinceaheuristic
BitDefenderThetaGen:NN.ZexaF.34144.kr1@aexs1Tli
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/GenKryptik.EPEX
APEXMalicious
Paloaltogeneric.ml
KasperskyTrojan-Downloader.Win32.Deyma.boc
AlibabaTrojanDownloader:Win32/Deyma.b0991024
RisingTrojan.Kryptik!1.C974 (CLOUD)
Ad-AwareTrojan.GenericKD.43559389
EmsisoftTrojan.GenericKD.43559389 (B)
F-SecureTrojan.TR/Kryptik.stadp
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_GEN.R057C0PGT20
SophosMal/EncPk-APV
SentinelOneDFI – Malicious PE
JiangminTrojanDownloader.Deyma.qq
AviraTR/Kryptik.stadp
MAXmalware (ai score=82)
Antiy-AVLGrayWare/Win32.Kryptik.ehls
MicrosoftTrojan:Win32/Cridex.AR!cert
ArcabitTrojan.Generic.D298A9DD
ZoneAlarmTrojan-Downloader.Win32.Deyma.boc
GDataTrojan.GenericKD.43559389
McAfeePacked-GBS!F7592A0C4E90
VBA32BScope.Trojan.Inject
MalwarebytesSpyware.PasswordStealer
PandaTrj/GdSda.A
TrendMicro-HouseCallTROJ_GEN.R057C0PGT20
IkarusTrojan-Spy.Agent
FortinetW32/Cridex.VHO!tr
AVGWin32:DangerousSig [Trj]
AvastWin32:DangerousSig [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Trojan-Downloader.Win32.Deyma.boc?

Trojan-Downloader.Win32.Deyma.boc 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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