Categories: Malware

Symmi.8604 (file analysis)

The Symmi.8604 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 Symmi.8604 virus can do?

  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • The executable is compressed using UPX
  • Executed a process and injected code into it, probably while unpacking
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Network activity detected but not expressed in API logs

How to determine Symmi.8604?


File Info:

crc32: D8BC479Dmd5: 10de4c91a7b1b493c040471e58ea614dname: 10DE4C91A7B1B493C040471E58EA614D.mlwsha1: 355f2027032b08e004b4df75323f5d291166a3a5sha256: 10b1fb29be62030b87fce245750631ff722923f993e31ca86f84b834ab19bd65sha512: aa368bba74151d6b29c3a00ae065bba225463aa6ab63c473e00735e7c9f0608fd2295c21f9f22c48cf1dc2e007928b72b1be6b0b5f9bc87865df7012e11184acssdeep: 1536:HMAlW6LoqkB/xj1hiryTCXnvL35+0ViGsGjwKNVBcW7TE8V:HrW6cqk7i93vLJ+0A+NIItype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed

Version Info:

0: [No Data]

Symmi.8604 also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004bcce41 )
Elastic malicious (high confidence)
DrWeb Trojan.Siggen4.43473
Cynet Malicious (score: 100)
ALYac Gen:Variant.Symmi.8604
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 004bcce41 )
Cybereason malicious.1a7b1b
Symantec Trojan.Shylock
APEX Malicious
Avast Win32:Crypt-OJD [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Symmi.8604
NANO-Antivirus Trojan.Win32.Yakes.deqwzq
MicroWorld-eScan Gen:Variant.Symmi.8604
Tencent Win32.Trojan.Ransom.Dxxe
Ad-Aware Gen:Variant.Symmi.8604
Sophos Mal/Generic-S
Comodo TrojWare.Win32.PWS.ZBot.AAA@4sq88d
BitDefenderTheta Gen:NN.ZexaE.34738.imW@aqXXRNei
VIPRE Trojan-PWS.Win32.Zbot.aaa (v)
TrendMicro TROJ_RANSOM.SMWX
McAfee-GW-Edition BehavesLike.Win32.PUPXAX.cm
FireEye Generic.mg.10de4c91a7b1b493
Emsisoft Gen:Variant.Symmi.8604 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.guvsu
Avira TR/Crypt.XPACK.Gen
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.11E6E15
Kingsoft Win32.Troj.Yakes.bk.(kcloud)
Microsoft VirTool:Win32/Obfuscator.ADR
GData Gen:Variant.Symmi.8604
AhnLab-V3 Trojan/Win32.Yakes.C2319681
Acronis suspicious
McAfee PWS-Zbot.gen.arb
MAX malware (ai score=81)
VBA32 Trojan.Yakes
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_RANSOM.SMWX
Rising Malware.Heuristic!ET#97% (RDMK:cmRtazr73yEuNWqZgrrTeQbP/qg1)
Yandex Trojan.Agent!9lumE1G/Iwc
Ikarus Trojan.Dropper
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Yakes.BKEL!tr
AVG Win32:Crypt-OJD [Trj]

How to remove Symmi.8604?

  • 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.
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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