Malware

What is “Win32/Kryptik.FXJS”?

Malware Removal

The Win32/Kryptik.FXJS 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 Win32/Kryptik.FXJS virus can do?

  • A file was accessed within the Public folder.
  • Sample contains Overlay data
  • CAPE extracted potentially suspicious content
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Uses Windows utilities to create a scheduled task
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Injection with CreateRemoteThread in a remote process
  • CAPE detected the embedded win api malware family
  • Yara detections observed in process dumps, payloads or dropped files

How to determine Win32/Kryptik.FXJS?


File Info:

name: 85AD739ABA5F21114564.mlw
path: /opt/CAPEv2/storage/binaries/7e4f2594e52faa81bd27e0fcb59beb9f93c8f6b8d689e60eb8ce434f250d82fc
crc32: 2F0E960E
md5: 85ad739aba5f21114564d1ea625f84ef
sha1: 5620ccbc0e687c4fc9d274514a9e9623e8e50ec9
sha256: 7e4f2594e52faa81bd27e0fcb59beb9f93c8f6b8d689e60eb8ce434f250d82fc
sha512: c6001217be0a30a86e62f8fe6f2bada8de4ff03e1304b8ac8a0f70e9922eb7cad16fc4d3a52d3bba80bdf52055442c13c2bb5c313282f992c2fef82c603360fc
ssdeep: 12288:P9MHSFNnnzr0Sbw1zhRxizZwR8pDPzUqA+x:P9MHSFNnn+izZZpzzdAS
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11F949D107A888072C2B334314779E5B349AC68301E2F5A9F57C8197A5FB85D1BB39F6B
sha3_384: 041c2042dd86381516d70cd62e20b8ba062991d7a9efd70375c22da5b36ec93b7c93817559be13581617c05c9fb4c17e
ep_bytes: e8ee030000e94efeffff558beca1f8d0
timestamp: 2017-10-04 07:48:11

Version Info:

0: [No Data]

Win32/Kryptik.FXJS also known as:

Elasticmalicious (high confidence)
DrWebTrojan.Encoder.3953
MicroWorld-eScanGen:Heur.Mint.Zard.55
FireEyeGeneric.mg.85ad739aba5f2111
SkyhighBehavesLike.Win32.Generic.gc
McAfeeTrojan-FQNX!85AD739ABA5F
Cylanceunsafe
SangforSuspicious.Win32.Save.a
K7AntiVirusTrojan ( 00518a1a1 )
AlibabaRansom:Win32/Crusis.23ac9460
K7GWTrojan ( 00518a1a1 )
CrowdStrikewin/malicious_confidence_90% (W)
BitDefenderThetaGen:NN.ZexaF.36744.AuZ@aq1!@Ajm
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.FXJS
APEXMalicious
CynetMalicious (score: 100)
KasperskyHEUR:Trojan-Ransom.Win32.Crusis.gen
BitDefenderGen:Heur.Mint.Zard.55
NANO-AntivirusTrojan.Win32.Ursnif.etjbod
AvastWin32:Splitter-A [Trj]
TencentWin32.Trojan-Ransom.Crusis.Bujl
EmsisoftGen:Heur.Mint.Zard.55 (B)
F-SecureHeuristic.HEUR/AGEN.1358377
VIPREGen:Heur.Mint.Zard.55
Trapminesuspicious.low.ml.score
SophosMal/Generic-S
IkarusTrojan.Win32.Crypt
JiangminTrojanSpy.Ursnif.aia
GoogleDetected
AviraHEUR/AGEN.1358377
Antiy-AVLTrojan/Win32.Kryptik
Kingsoftmalware.kb.a.1000
ArcabitTrojan.Mint.Zard.55
ZoneAlarmHEUR:Trojan-Ransom.Win32.Crusis.gen
GDataGen:Heur.Mint.Zard.55
AhnLab-V3Trojan/Win.FQNX.C5301881
VBA32BScope.Trojan.Inject
MAXmalware (ai score=87)
MalwarebytesGeneric.Malware/Suspicious
RisingTrojan.Generic@AI.100 (RDML:/htKfZ4o2tTz6IrEXmOosw)
YandexTrojan.GenAsa!d9epGSQDS5g
FortinetW32/GenKryptik.AYHW!tr
AVGWin32:Splitter-A [Trj]
Cybereasonmalicious.c0e687
DeepInstinctMALICIOUS

How to remove Win32/Kryptik.FXJS?

Win32/Kryptik.FXJS 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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