Trojan

About “Trojan:Win32/Loyeetro.DSK!MTB” infection

Malware Removal

The Trojan:Win32/Loyeetro.DSK!MTB 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:Win32/Loyeetro.DSK!MTB virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Hindi
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Enumerates services, possibly for anti-virtualization
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Deletes its original binary from disk
  • Behavioural detection: Injection (inter-process)
  • Installs itself for autorun at Windows startup
  • Installs itself for autorun at Windows startup
  • CAPE detected the Tofsee malware family
  • Attempts to interact with an Alternate Data Stream (ADS)
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Trojan:Win32/Loyeetro.DSK!MTB?


File Info:

name: 9ECC11538C56E31DED75.mlw
path: /opt/CAPEv2/storage/binaries/d38b28f4354417494a7caa0cc02151ade657df7c43669dd1025e070dd1d9d38c
crc32: 43ABA0CA
md5: 9ecc11538c56e31ded75061e4aed36b6
sha1: bc0918c508324b6812168d0ff0763c889b6539f8
sha256: d38b28f4354417494a7caa0cc02151ade657df7c43669dd1025e070dd1d9d38c
sha512: 58d24e7a1360fe0bdc1e783851774e2ff27e6e16be29ca169d82f5594d8f55c3a6454972045418e5b181f335c409e23028efeb80e505507a1703ea85881f5c4d
ssdeep: 49152:dkeaAIgggggggggggggggggggggggggggggggggggggggggggggggggggggggggg:dke7
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1F0D607706613ACBDD47151BD373FBF2C6A8FE572DA70416B09238CD186931889ECA61B
sha3_384: 31f7732a840fef78dba0705a7116af1d4dc1e9506ee89a9960c4b4a161f1991edf9e2ea5f603a8396a86d1d2238713c3
ep_bytes: e86d020000e98efeffff558bec8b4508
timestamp: 2019-01-31 09:34:08

Version Info:

FileVersionStart: 9.0.5.4
InternalName: pirtbb.isi
LegalCopyright: Copyright (C) 2019, fdgudfgv
ProductVersion: 1.9.1

Trojan:Win32/Loyeetro.DSK!MTB also known as:

BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
ClamAVWin.Packed.Zenpak-7165576-1
FireEyeGeneric.mg.9ecc11538c56e31d
CAT-QuickHealRansom.Stop.MP4
McAfeeGenericRXIL-MS!9ECC11538C56
MalwarebytesTrojan.MalPack.GS
ZillyaTrojan.Generic.Win32.937374
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 00556ed41 )
K7GWTrojan ( 00556ed41 )
Cybereasonmalicious.38c56e
CyrenW32/Kryptik.ACO.gen!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GVZX
APEXMalicious
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Brsecmon.1
NANO-AntivirusTrojan.Win32.Zenpak.fxmwic
MicroWorld-eScanTrojan.Brsecmon.1
AvastWin32:Malware-gen
TencentMalware.Win32.Gencirc.10b9c198
Ad-AwareTrojan.Brsecmon.1
SophosML/PE-A + Mal/GandCrab-H
DrWebBackDoor.Tofsee.199
TrendMicroTrojan.Win32.SODINOK.SM.hp
EmsisoftTrojan.Brsecmon.1 (B)
SentinelOneStatic AI – Suspicious PE
GDataTrojan.Brsecmon.1
JiangminTrojan.Zenpak.yf
MaxSecureTrojan.Malware.300983.susgen
AviraTR/ATRAPS.Gen2
Antiy-AVLTrojan/Generic.ASMalwS.2C4D28B
MicrosoftTrojan:Win32/Loyeetro.DSK!MTB
AhnLab-V3Win-Trojan/MalPe29.Suspicious.X2018
Acronissuspicious
BitDefenderThetaGen:NN.ZexaF.34062.@B0@aSBBW@kG
ALYacTrojan.Brsecmon.1
MAXmalware (ai score=87)
VBA32BScope.Trojan.Wacatac
TrendMicro-HouseCallTrojan.Win32.SODINOK.SM.hp
RisingTrojan.Generic@ML.90 (RDML:UWpf+guY5Lz2V3FwBMy1Xg)
YandexTrojan.GenAsa!ZpyuecbAhVQ
IkarusTrojan.Krypt
eGambitUnsafe.AI_Score_62%
FortinetW32/Kryptik.GWIV!tr
AVGWin32:Malware-gen
PandaTrj/GdSda.A
CrowdStrikewin/malicious_confidence_70% (D)

How to remove Trojan:Win32/Loyeetro.DSK!MTB?

Trojan:Win32/Loyeetro.DSK!MTB 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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