Trojan

Trojan-Downloader.Win32.GuLoader.yx (file analysis)

Malware Removal

The Trojan-Downloader.Win32.GuLoader.yx 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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What Trojan-Downloader.Win32.GuLoader.yx virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • Authenticode signature is invalid

How to determine Trojan-Downloader.Win32.GuLoader.yx?


File Info:

name: 690CDACE57F6D65380B6.mlw
path: /opt/CAPEv2/storage/binaries/8f43a541ecab570a944b2bb09636c4ed1ad17cce30640fe5d98d6124b98d5dd7
crc32: DA33438D
md5: 690cdace57f6d65380b65ec4dbff82e1
sha1: cc15c79c9cfe0127432826d381ff7108ccb6d267
sha256: 8f43a541ecab570a944b2bb09636c4ed1ad17cce30640fe5d98d6124b98d5dd7
sha512: ce6ec351438209900e47c2740871d3105be3b26e4d0ac9515f20019bbbe34f3630f872bfdf1f5c0e77d7cb305f946aec6170af88d3adea9759ad5346f2051678
ssdeep: 1536:SmasjQ/ePP4yDVR8qYWjOrFzu4eSgygrP1iM/Vx99:EsjGtyDVR8qzKJzu4eSgBrPN
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T12AE37C64B240E5D4E15A73B0EE6AF35C80A56C3335A009FF4DC63B495672B8798E37A3
sha3_384: 503f98c37ade08b43d4fdd3583008808860bd9381b9bf08b62e0fc1c632f985e1d04758f4a0b386a66522d506972cd96
ep_bytes: 68c8204000e8eeffffff000000000000
timestamp: 2017-07-13 16:42:09

Version Info:

Translation: 0x0409 0x04b0
CompanyName: MURAL
FileDescription: MURAL
LegalCopyright: MURAL
LegalTrademarks: MURAL
ProductName: MURAL
FileVersion: 1.00
ProductVersion: 1.00
InternalName: RKENSANDET
OriginalFilename: RKENSANDET.exe

Trojan-Downloader.Win32.GuLoader.yx also known as:

BkavW32.AIDetect.malware2
LionicTrojan.Win32.GuLoader.a!c
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.38243368
FireEyeGeneric.mg.690cdace57f6d653
ALYacTrojan.GenericKD.38243368
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0058ba0d1 )
AlibabaTrojanDownloader:Win32/GuLoader.dbf06f66
K7GWTrojan ( 0058ba0d1 )
Cybereasonmalicious.e57f6d
BitDefenderThetaAI:Packer.2628937220
VirITTrojan.Win32.VBZenPack_Heur
CyrenW32/VBKrypt.BER.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.HNQA
TrendMicro-HouseCallTROJ_GEN.R002C0WLA21
Paloaltogeneric.ml
ClamAVWin.Malware.A0u4b9mi-9914631-0
KasperskyTrojan-Downloader.Win32.GuLoader.yx
BitDefenderTrojan.GenericKD.38243368
ViRobotTrojan.Win32.Z.Kryptik.147456.ABR
AvastWin32:Malware-gen
TencentWin32.Trojan-downloader.Guloader.Wncu
Ad-AwareTrojan.GenericKD.38243368
SophosMal/Generic-S
Comodo.UnclassifiedMalware@0
TrendMicroTROJ_GEN.R002C0WLA21
McAfee-GW-EditionRDN/Generic Downloader.x
SentinelOneStatic AI – Suspicious PE
EmsisoftTrojan.GenericKD.38243368 (B)
IkarusTrojan.VB.Crypt
GDataTrojan.GenericKD.38243368
JiangminTrojanDownloader.GuLoader.gi
MaxSecureTrojan.Malware.300983.susgen
Antiy-AVLTrojan/Generic.ASMalwS.34EBC67
KingsoftWin32.TrojDownloader.GuLoader.yx.(kcloud)
GridinsoftRansom.Win32.Sabsik.sa
MicrosoftTrojan:Win32/Tnega.PK!MTB
AhnLab-V3Trojan/Win.GuLoader.R457673
McAfeeRDN/Generic Downloader.x
VBA32BScope.TrojanDownloader.GuLoader
MalwarebytesTrojan.MalPack.VB
APEXMalicious
YandexTrojan.DL.GuLoader!J8EMJgYJPmk
MAXmalware (ai score=86)
eGambitUnsafe.AI_Score_99%
FortinetW32/Kryptik.HNQA!tr
WebrootW32.Malware.Gen
AVGWin32:Malware-gen
PandaTrj/GdSda.A
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Trojan-Downloader.Win32.GuLoader.yx?

Trojan-Downloader.Win32.GuLoader.yx 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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